Author: zeeshan@advantage-services.com

When your entire home loses power during a storm, it’s easy to guess why the electricity is out. The hard part is understanding what’s going on when a single section of your home experiences an outage. If your heating, ventilation, and air conditioning (HVAC) equipment won’t work because of a partial outage, our team of experienced technicians can help you determine where the problem is occurring and the best course of action.

What Does It Mean When Only One Part of Your Home Loses Power? 

A partial outage generally means there is a circuit-level issue involved. If a single room, your HVAC equipment, or a group of outlets lose power suddenly, the circuit breaker has tripped, or the circuit is malfunctioning.

As a homeowner, the most important thing is to approach this problem as safely as possible. While there are some safe checks you can make on your own, major electrical problems and repairs should always be left to the professionals.

Before You Troubleshoot: How To Stay Safe

To help you address this inconvenience, we’ll cover some of the most basic checks. However, you should immediately stop performing checks if you notice any heat, burning odors, or sparks. Additionally, repeated breaker tripping is another indication that you should stop troubleshooting and call a licensed electrician.

Signs You Need To Stop Immediately

The following signs are indications that you should immediately stop and get help.

• Scorched outlets
• Burning smells
• Buzzing sounds
• Water exposure in and around the outlet
• Warm faceplates
• Repeatedly tripped breakers

Why Repeated Trips Matter

Breakers are an important safety feature. When a circuit overloads, short circuits, or experiences a ground fault, the breaker trips to stop electricity from flowing. By doing so, it prevents fires and overheating.

A single occurrence isn’t a cause for alarm. If the same breaker trips repeatedly, it means that there is an underlying electrical problem that isn’t going to go away on its own. Most likely, your home has damaged wiring, an overloaded circuit, equipment malfunctions, or a short.

First Things To Check When a Power Circuit Stops Working

As soon as a circuit loses power, there are a few quick, simple checks you can perform to figure out the underlying problem.

Check the Breaker Panel First

The first step is to check your breaker panel. When a breaker trips, it doesn’t always move into the off position. Instead, it often just sits in the middle, although this can vary between different breaker designs. 

If you see a breaker in this middle position, turn it all the way off before switching it on again. In most cases, this should resolve the problem completely. 

However, you should not keep resetting the breaker if it continues to trip. In this circumstance, you should call a professional electrician for help.

Look for a Tripped GFCI Outlet

A GFCI outlet could also be causing your lack of power. GFCI outlets are designed to protect circuits that are in humid or wet areas, such as kitchens, bathrooms, laundry rooms, and garages. If they detect a ground fault due to moisture, they trip and shut down the rest of the circuit.

Try resetting it by pressing the reset button. If the power does not start working right away, there is something else wrong.

Unplug Recent Appliances and Think About Overloads

One of the most common reasons why circuit breakers trip is having too many appliances. Kitchens are notoriously bad for this problem. If you have a microwave going while you start a pot of coffee and toast bread, it can overload the circuit. Space heaters, microwaves, vacuums, window ACs, and hair styling tools are some of the most common culprits responsible for overloaded circuits.

The good news is that this is a relatively easy problem to fix. You simply need to unplug one or more of the appliances and use them on a different circuit. At the very least, you’ll need to make sure that you use appliances one at a time if they remain on the same circuit.

Figure Out Whether the Problem Is One Outlet, One Wall, or One Room

Before you call for help, it’s a good idea to figure out the extent of the problem. Try using appliances in different rooms and on different circuits. This will help you determine if you’re dealing with a dead receptacle, switch issues, a circuit problem, or something that affects your entire house.

Other Reasons Outlets or Circuits May Stop Working

As a homeowner, there are a few underlying causes of outlet- and circuit-related problems that you should watch out for.

Loose Wiring or a Worn Outlet

Loose wiring or a worn outlet may cause the outlet to stop working. If the outlet and wiring are starting to wear out, you’ll often notice crackling noises, burned odors, and discoloration. When you plug something in, it may feel like the plug fits loosely.

This type of problem is easily fixed by having an electrician install a new outlet. Because outlets are relatively cheap to replace, it’s generally better to replace them rather than repair them.

AFCI Protection or a Hidden Downstream Problem

Electricians have many tools available that can help them check for less common problems. With a multimeter, they can look at voltage and resistance to figure out which outlets and circuits are having issues. 

AFCI protection could also be responsible for your outage. This protective feature stops the outlet or circuit from working whenever a dangerous electrical arc is detected. While this is an important safety feature, it can sometimes be a nuisance when it occurs due to false alarms. For example, vacuums, treadmills, and other complex electronics can make electrical noise that accidentally trips the AFCI breaker. 

What To Do if a Circuit Supplying Your Furnace, Thermostat, or Air Conditioner Loses Power

At Fox Family Heating & Air, we can help with all of your HVAC-related questions. If you have a dead circuit and your comfort system won’t work, we can recommend the best steps to take. As a homeowner, there are a few troubleshooting tips you can use before you need to call in the experts.

Simple HVAC-Related Checks

First, check your thermostat display to make sure your unit is in the right mode and set to the correct temperature. If your thermostat has power and is set appropriately, you can check your air filter to see if a clogged filter has caused an automatic shutdown. You should also see if a clogged condensate drain or condensate pump failure has caused a safety shutdown.

Throughout the process, you should pay attention to what equipment was affected. If only the HVAC equipment isn’t working, it may be due to a problem with the actual equipment. When a whole area or circuit has lost power, the problem is likely electrical.

When the Issue May Be Equipment-Related

Breaker trips aren’t always caused by the breaker itself. If your HVAC equipment has a failing motor, pump, or other component, it can trigger the breaker to shut off. While you can try resetting the breaker once, you should not repeatedly reset it because recurring trips mean there’s an underlying malfunction going on.

When To Call a Licensed Electrician

Once you’ve finished the safe DIY checks, stop. Electrical systems and HVAC units can be dangerous to work on if you aren’t licensed to handle them. As soon as you notice any of the following warning signs or major issues, you should reach out for professional help.

Urgent Warning Signs

The following signs mean you need to call an electrician or HVAC technician for support.

• Hot panels
• Visible signs of damage
• The breaker won’t turn on again
• Smell of smoke
• Multiple dead circuits present

Non-Emergency Reasons To Book Electrical Services

While the following situations aren’t immediate emergencies, you should still get the problem checked out by a professional as soon as possible.

• One dead circuit keeps failing.
• An outlet is loose.
• After basic checks, the outlet remains dead.

FAQs

Why would outlets stop working if the breaker is not tripped?

GFCIs can shut down the circuit without tripping the breaker. Additionally, loose wiring and worn outlets can fail without necessarily affecting the breaker.

Can one GFCI outlet shut off multiple outlets?

Yes, it can. GFCI outlets can shut off any outlets downstream. Think of GFCI like a traffic cop. When the traffic cop stops traffic at the start of the roadway, those cars can’t appear at later intersections until the officer lets them through. Similarly, a GFCI outlet can block energy from passing through to downstream outlets.

Is it safe to keep resetting a breaker?

No, it isn’t. If your breaker continues to trip, you’ll need to schedule a professional inspection.

Should I call an electrician or an HVAC company if my furnace has no power?

If your furnace is without power, it depends on what the issue is. A dead circuit or a repeatedly tripped breaker should generally be dealt with by an electrician. In comparison, an HVAC technician is the best solution if the cause stems from your actual furnace.

Schedule Your Professional Inspection

At Fox Family Heating & Air, we have seen all types of HVAC problems over the years. If your HVAC equipment won’t turn on, our team is here to help. 

Ready to diagnose your HVAC problems? Reach out to Fox Family today.

As the Delta breeze rolls in and the temperatures start to warm up, it’s time to make sure your mini-splits’ settings are adjusted for the changing weather. In Sacramento, we have hot, dry summers and cool winters. To maximize your family’s comfort and your home’s energy efficiency, you need to update your mini-splits settings to match the changing seasons. 

Why Homeowners Want the Right Mini-Splits Setting

Mini-splits operate on a different design than traditional air conditioners. Because they are meant to run on low for extended periods, drastic setbacks can tax the mini-splits’ components and lead to higher energy costs. The best temperature setting approach is to select a range instead of picking a single magic number.

Ideally, you should choose a temperature range that lets you stay comfortable without wasting energy during our chilly winter mornings and hot summers. To help, we’ve compiled some of the best summer and winter temperature settings in Sacramento as well as effective operating habits that can enhance your family’s comfort.

Mini-Splits Settings at a Glance: Choosing the Right Temperature for Your Home 

Each homeowner has different temperature preferences, so you may need to adjust your settings over time. As a starting point, we recommend using the following ranges for your temperature settings. You should set different temperature ranges for when you are at home, away, or asleep.

Summer Starting Range

During summer, the following temperature ranges should provide a good balance of comfort and energy efficiency.

• Home: 75°F to 78°F
• Away: 80°F to 85°F
• Overnight: 72°F to 75°F

Winter Starting Range

When winter rolls around, don’t forget to adjust your thermostat to match the changing weather.

• Home: 68°F to 72°F
• Away: 60°F to 64°F
• Overnight: 65°F to 68°F

Why Mini-Splits Usually Work Better With Steady, Consistent Settings

Ductless mini-splits rely on an inverter, which is why they can operate at a low level for extended periods of time. If you make drastic changes to your home’s temperature, it can strain the unit and lead to unnecessary wear.

How an Inverter Works and Why That Matters

Inverters can modulate the unit’s output. This basically means it can operate at different levels instead of simply being on or off. 

As a result, mini-splits function best when they operate at a low level for extended periods of time. To optimize your comfort and energy efficiency, it’s better to keep your temperature between steady setpoints instead of constantly adjusting it.

Why Constant Changes Can Hurt Comfort

Sometimes, people try to save money by turning the mini-splits off for a while and then turning them back on when it gets too hot. Unfortunately, this will not help with energy efficiency or comfort. Mini-splits are made to operate at a low level for extended periods, so aggressive setbacks or manual changes can overwork your unit.

The Best Mini-Splits Settings for Summer

Let’s take a closer look at some of the best practices for summertime mini-splits settings in Sacramento.

Home Settings

For most Sacramento homes, 75°F to 78°F is a good range. However, the amount of sun exposure in the room can impact how comfortable this setting is. Additionally, you may want to use away settings for zones and rooms that aren’t occupied during the day.

Summertime Away Settings

When you’re away from home, you don’t have to cool it as much. However, you do need to keep the setback from being too extreme. Otherwise, your mini-splits will have to work too hard to catch back up later. For most homes, 80°F to 85°F will work fairly well.

Overnight Cooling

Hot temperatures can disrupt sleep, so you should generally set your temperature back to a range of 72°F to 75°F at night. Additionally, you may want to adjust the fan settings to a quieter level. 

The Best Mini-Splits Settings for Winter

While Sacramento’s winters are fairly mild, it can still get chilly. To stay warm, remember to adjust your daytime, away, and nighttime settings.

Daytime Heating Setting

During the day, a temperature range of 68°F to 72°F offers a balance of comfort and energy efficiency.

Overnight Setback

When you’re covered up in bed, cooler temperatures feel comfortable. A temperature range of 65°F to 68°F will work well at night. Because mini-splits work best at a consistent, low level of operation, you don’t want to create an extreme setback at night.

Away Settings

To maximize your energy efficiency and make your unit’s comfort recovery easier, it’s best to set a temperature range between 60°F and 64°F when you’re away. 

The Best Mode and Fan Settings for Maximizing Your Comfort and Energy Efficiency

In addition to setting the temperature, it’s important to understand how different modes affect your family’s comfort and the energy efficiency of your mini-splits.

Heat, Cool, Auto, and Dry Mode

You can set your thermostat’s mode to heat, cool, auto, or dry. In heat and cool mode, the unit will only heat or cool. Meanwhile, dry mode is useful when the air is too humid. 

Auto mode should be used with care. It involves setting low and high limits that trigger the heating and air conditioning to turn on. While this might be convenient during our shoulder seasons, it can lead to wasted energy. For example, having the heat on during a cool morning and the air conditioning on in the afternoon means you’re using energy unnecessarily. Instead, allowing the temperature to drift lower in the morning enables you to cool less during the afternoon.

Fan Speed and Louver Direction

During the winter, angle your louvers down so that heat has a chance to reach the rest of the room before it rises. In the summer, you can reverse the louvers so that cool air can spread before the heat rises to replace it.

The Top Mini-Splits Setting Mistakes

To optimize your home’s comfort and energy efficiency, remember to avoid the following thermostat mistakes. 

Setting Extreme Temperatures

When you get home from work and want to cool off, don’t set your thermostat extra low. Extreme temperatures won’t make the mini-splits heat or cool any faster.

Frequently Shutting the System Off

Shutting off the mini-splits to save money generally doesn’t help. These units are more energy efficient when they run at a stable temperature for an extended period instead of having to restart and recover from a significant setback.

Ignoring Dirty Filters and Airflow Essentials

When it comes to performance, dirty filters, closed-off rooms, and blocked heads can quickly harm performance. Fortunately, all of these problems are relatively easy to fix.

Fine-Tune Your Settings for the Room’s Function and Sun Exposure

For the best results, it helps to fine-tune the settings for each part of your home.

Hot, Sunny Rooms

West-facing rooms, upstairs spaces, and any area with large windows will get warmer. Because of this, you may need to cool these spaces more in the summer and less in the winter.

Bedrooms and Lightly Used Areas

Mini-splits are known for their zone control. This allows you to change the thermostat settings for different areas. If you use a home office during the day and never go into your bedroom or living room, your zone control means you can switch these rooms to the away setting and save money.

The Temperature Setting May Not Be the Problem

If fine-tuning your thermostat settings doesn’t work, the problem may be something else.

Signs You May Have a Performance Issue

Frequent error codes, ice buildup, unusual odors, odd noises, and weak airflow are all signs that you need professional repairs. If you’re experiencing a performance problem, setting the thermostat differently won’t help. As soon as you notice that your unit is acting unusually or struggling to reach a set temperature, you can reach out to our team for same-day services.

FAQs

What temperature should my mini-splits be set to in the summer?

It depends on whether you are at home, away, or asleep. Additionally, you will likely want to adjust the thermostat settings for different rooms in your home. We generally recommend a range of 75°F to 78°F when you’re home, 80°F to 85°F when you’re away, and 72°F to 75°F when you’re asleep.

Should I turn my mini-splits off whenever I am away from home?

For mini-splits, a moderate setback is more energy efficient than a full shutdown. Because it is easier for the unit to recover from, it also means your family can feel comfortable faster.

Is auto mode efficient on a mini-split?

It can be, but it depends. Auto mode can lead to unnecessarily heating or cooling your home right before the temperature changes later on in the day. Because of this, it’s good to be cautious. If this isn’t an option, you may be able to improve your efficiency by setting a broader temperature range.

Why do my mini-splits feel wrong even when the setting appears to be right?

While the setting may be accurate, extra sun exposure, poor airflow, or service issues could be making your home feel uncomfortable. If this is an ongoing problem, it’s a good idea to reach out to our team for professional assistance.

Update Your Mini-Splits’ Settings

With the help of Fox Family Heating & Air, you can keep your mini-splits operating at their best all year long. From tune-ups to performance tests, we can help you diagnose underlying problems and maximize your energy efficiency. 

Schedule your next maintenance appointment today.

As you open your utility bills, you don’t want to be surprised by a higher figure. While heating bills can increase during the winter, sudden spikes may be a sign that something is wrong with your heating system. To learn more about what may be wrong and how to fix it, read on.

Why a Heating Bill Can Spike Unexpectedly

A larger-than-expected winter bill may be due to colder weather, but it could also be connected to an aging system or longer system run times. While some of the underlying causes can be fixed, others are related to how you are using your heating system. 

Before Blaming the System, Check the Obvious

Faulty components and poor maintenance can cause your energy bills to spike, but the real reason is often far more obvious. A combination of colder weather and more time at home often results in more expensive energy costs during the winter.

Colder Weather, Longer Billing Cycle, or Higher Rates

Colder weather, longer billing periods, and changes to your utility rates are common reasons why your bill might be higher. Before you become worried about whether your heating, ventilation, and air conditioning (HVAC) system is working, you should first read through your billing statement and check the weather to see if any of these factors are potentially to blame.

More Time at Home and More Heating Use

Another major reason why heating bills go up during the winter is that people are spending more time at home. The sun sets earlier, so people come home earlier and spend more time indoors. Over the holidays, you may also have more guests and events at home. Additionally, schedule changes at work or time off from school can lead to more energy usage. 

Common Reasons Why You Might Have a High Heating Bill

After eliminating the more obvious reasons, you can also check out some of the other problems that might result in higher heating bills. Although some of these causes may require mechanical repairs, others may be fixed by performing routine maintenance.

Dirty Filter or Blocked Airflow

When an air filter is clogged, it limits the amount of air that can go into your furnace or heat pump. As a result, your system has to work harder in order to maintain the same temperature. 

Fortunately, this is an easy problem to fix. All you have to do is check your filter and replace it if it is dirty. It should generally be replaced every 30 to 90 days, but more frequent replacements may be needed during periods of intense usage.

Leaky Ducts

In the average American home, 20% to 30% of the air that passes through the ducts is lost due to leaks, gaps, and holes. When air is lost in your attic or crawlspace, your heating system has to work harder to maintain the desired temperature. Over time, this can lead to significantly higher costs.

Thermostat or Schedule Mistakes

It’s also worth checking your thermostat to see if it is the source of your higher bills. For example, people sometimes set higher setpoints, which makes their furnace work harder.

Besides the setpoint, you should check your fan mode and schedule. Sometimes, people turn up the heat because they don’t feel the air reaching them. Running the fan for a set amount of time every hour can ensure heated air reaches every corner of your room. You should also make sure each vent’s louvers are facing downward so that heat has a chance to spread across the floor before it rises.

  Your schedule also needs to be updated so that you aren’t heating your home when you’re away. When you are home, it’s important to avoid manually overriding the settings because this can lead to more energy use.

Air Leaks and Weak Insulation

If your home has air leaks or weak insulation, there will be more heat loss. You should watch out for drafts around your doors and windows. Attics are also a common source of energy loss because heat rises to the attic, where it can easily escape if there is poor insulation. 

Aging Equipment or Skipped Maintenance

Aging equipment and poor maintenance can harm your unit’s energy efficiency. The best way to avoid this type of problem is by scheduling a heat pump or furnace tune-up service.

Hidden System Problems

Finally, short cycling, failing components, and relying on backup heat can drive up your energy costs. These problems may be less obvious, but they directly impact how hard your HVAC system has to work to keep your home warm.

Fixes That Can Lower Heating Costs

If you are struggling with higher energy costs, there are a few simple steps you can take to improve your energy efficiency.

Quick Actions You Can Take

To troubleshoot your higher energy costs, try using the following steps.

• Change the Filter: If the unit’s filter is clogged, a new filter will improve your unit’s airflow.
• Adjust the Thermostat: Troubleshoot thermostat issues by checking the mode, temperature settings, and schedule.
• Open Vents: To avoid airflow problems, open all of the vents in your home and make sure they aren’t obstructed. 
• Seal Drafts: Check for drafts around your doors and windows. Then, use caulk to seal them up.
• Use Blinds at Night: Blinds can help keep heat in during the winter by forming an extra layer of insulation.

Maintenance and Airflow Improvements

Poor maintenance can lead to dirty and damaged components. Fortunately, a simple tune-up may be able to fix the problem. During the tune-up, we can also evaluate your ducts for potential leaks and test the airflow in your home. If there are any issues, we can seal your ducts and make adjustments to improve your home’s airflow.

Signs You Need a Professional Inspection

Even with the best maintenance and DIY care, some tasks can only be dealt with by a professional. If you notice the following symptoms, it’s time to call for an expert diagnosis.

Comfort Problems That Match the High Bill

Once your HVAC problems start to affect your family’s comfort, you need to schedule a repair appointment. Unusually cold rooms, constant cycling, extra noise, and uneven heat are signs that repairs are needed. Additionally, you should immediately get help if your heat pump or furnace remains on for extended periods of time.

Bill Spikes That Do Not Match the Weather

It’s normal to have energy bills that spike when the weather gets colder. If your energy bills keep increasing when the weather warms up, this indicates a mechanical problem instead of normal seasonal use.

When Repair Versus Replacement Becomes the Bigger Question

Once you’ve diagnosed the underlying issue, the next step is determining whether your heat pump or furnace should be repaired or replaced.

When Repairs Are a Good Choice

A repair is often a better choice when you’re dealing with an isolated problem or something that is easy to fix. Similarly, fixing a gap between tune-ups or performing a low-cost repair is generally a worthwhile investment.

When Replacements Make More Sense

Once HVAC systems reach the end of their lifespans, they are more likely to need repairs and become less efficient. At this point, it’s better to simply replace the unit. Similarly, it’s better to get a replacement if your furnace or heat pump has a repeated repair history or continues to experience declines in energy efficiency.

FAQs

Why did my heating bill go up if I did not change the thermostat?

Even if you didn’t change your thermostat, your heating system may be working harder because the temperature is colder. Issues with your system’s condition, a longer billing cycle, or poor maintenance can also impact how efficient your heating system is.

Can a dirty air filter really raise my heating bill?

Absolutely. When the filter is dirty, it limits airflow in your unit. This makes your heater work harder to warm up your home, leading to longer runtimes. In turn, this factor results in higher energy bills.

How much do duct leaks affect heating costs?

Duct leaks can play a major role in heating costs. When air leaks out, it is lost to your crawlspace or attic. Then, your heating system has to work harder to replace the lost air and keep your home warm. By sealing the ducts, you can reduce energy loss.

When does a high heating bill mean I need service?

Sudden spikes in your energy bill, comfort problems, and repeated issues with your HVAC system are signs that you should get your unit serviced. If you have already tried replacing the filter and performing basic maintenance, the next step is scheduling a professional repair appointment.

Improve Your Home’s Energy Efficiency

Whether you are struggling with a faulty furnace component or need a heat pump tune-up, we can help. Fox Family Heating & Air can evaluate your HVAC system to figure out why your energy bills are increasing. Then, we can help you determine the best repair or replacement for fixing the problem. 

Are you tired of inexplicably higher energy bills? Reach out to Fox Family today for expert diagnostics.

When your heat pump keeps switching off and on all the time, it isn’t just a minor annoyance. This type of repeated short cycling can impact your family’s comfort, lead to wear and tear on the unit, and increase your energy bills.

To help troubleshoot this symptom, we’ll cover some of the common causes as well as DIY checks Rancho Cordova residents can perform. We’ll also look at when you need to call a professional heating, ventilation, and air conditioning (HVAC) technician for expert assistance.

What “Short Cycling” Means (And What’s Normal)

Short cycling is when your heat pump cycles on and off quickly and repeatedly. Often, this will occur before it reaches the appropriate temperature, so your home may feel less comfortable than normal.

It’s important to note that this is different from a heat pump’s defrost cycle. With defrost cycles, the heat pump temporarily reverses direction in the winter to defrost ice that has built up on the outdoor unit. You may see steam coming from the outdoor unit, and your indoor vents may temporarily blow cold air. The defrost cycle is normal and not a cause for concern.

Common Signs Your Heat Pump Is Short Cycling

If you notice any of the following symptoms, your heat pump is likely experiencing short cycling.

• Your heat pump starts and stops every few minutes.
• The thermostat shows short runtimes.
• There are loud start-up noises or frequent clicking sounds.
• The weather hasn’t changed, but your electricity bill went up.
• Your home experiences drastic temperature swings and is never truly comfortable.
• The humidity level feels worse when the heat pump is in cooling mode.

Important Safety Note: If you notice burning odors or tripped breakers, immediately stop using your heat pump and call a professional for help.

Why Heat Pump Short Cycling Happens

To get a better understanding of short cycling, let’s take a look at why it happens, what you can do, and when you need to schedule professional HVAC repairs.

Dirty Air Filter or Restricted Airflow

A clogged filter, closed registers, or blocked returns can limit airflow, resulting in overheating, frozen coils, and safety shutoffs. You can handle this problem on your own by replacing the filter, opening vents, and clearing the returns.

Thermostat Issues

Sometimes, there are issues with the unit’s thermostat placement, wiring, or settings. If the thermostat is in the sun or near a supply vent, it will get an inaccurate temperature reading. To troubleshoot, check your fan setting and mode. Then, make sure your smart thermostat configuration is correct and change the batteries. Additionally, you should evaluate the thermostat’s location and placement.

Oversized Heat Pump (Or Wrong Staging)

If your heat pump is oversized or has the wrong staging, it’ll reach the appropriate temperature too quickly and shut off. Often, you’ll see this after someone gets a new installation or replacement.

This isn’t a problem you can fix on your own. Instead, have a technician come out to evaluate the size, airflow, and staging setup.

Low Refrigerant or Refrigerant Leak

Low refrigerant levels cause faster shutdowns and frozen coils. The best way to fix this is by finding and repairing the leak. Afterward, the refrigerant levels can be recharged.

This is not a DIY problem. Under rules from the Environmental Protection Agency (EPA), this type of work can only be performed by an EPA-certified technician.

Outdoor Unit Problems

If the outdoor unit is experiencing fan problems, a dirty coil, or issues with the defrost control, it can trip important safety features. To avoid this kind of issue, try clearing debris away from around the unit. Then, you can gently rinse off the coils as needed.

Electrical Component Issues

Sometimes, a problem will occur with the capacitor, control board, or contactor. You might notice unusual clicking sounds, intermittent starts, or random shutdowns.

This type of problem is a major safety risk. Because of this, only professional HVAC technicians should be allowed to deal with electronic-related issues.

Ductwork or Static Pressure Problems

Crushed flex, duct leaks, zoning issues, and poor airflow balance can restrict airflow and lead to short cycling. This is another issue that can only be fixed by an HVAC technician. Once you schedule our repairs, our team can quickly come out to your home to do a thorough duct evaluation, duct sealing, and balancing.

What To Do First: Safe DIY Checks

As a Rancho Cordova homeowner, there are a few DIY steps you can take to correct short-cycling issues.

• Change the air filter, using a replacement that has the appropriate MERV rating and size.
• Make sure supply vents and returns are open.
• Replace your thermostat batteries and double-check your settings.
• Avoid making drastic temperature changes on your thermostat.
• Clear leaves and debris away from your outdoor unit to ensure it receives proper airflow.
• As soon as you notice ice on the coil or refrigerant lines, immediately switch your unit off and call for help.

Stop and Call Now If

There are a few signs that indicate a major emergency that could pose a safety risk to your home, family, or heat pump. If you notice the following symptoms, you should immediately stop using your heat pump and call one of our HVAC technicians for professional help.

• Tripped breakers, especially if they repeatedly trip
• Burning odors
• Recurring error codes
• Ice buildup

When To Call a Pro (And Why Waiting Can Cost More)

When dealing with short cycling, you should never delay seeking repairs. If short cycling is allowed to continue, it can cause significant damage to your compressor. It can also spike your energy bills and result in unnecessary wear.

If trying DIY checks fails to resolve the problem within a day, it’s time to reach out for professional help. Our experienced HVAC technicians serve the Rancho Cordova and Sacramento areas. Reach out to book your next HVAC appointment.

How a Technician Diagnoses Short Cycling: What To Expect

When one of our technicians comes out to work on your heat pump, you can expect them to use the following diagnostic checks.

• Check the thermostat and controls.
• Review static pressure, temperature split, and airflow.
• Test electrical components, such as the contactor and capacitor.
• Get a refrigerant reading. Inspect for leaks as needed.
• Confirm the unit has the appropriate size and staging.

How To Prevent Heat Pump Short Cycling

To avoid future problems, remember the following tips.

• Filter Schedule: Consistent filter changes ensure proper airflow and protect your unit from airborne contaminants.
• Outdoor Cleaning: To improve airflow, clear a 2- to 3-foot area around your outdoor unit.
• Tune-Ups: Ensure optimal performance by getting an electrical inspection and coil cleaning during your seasonal tune-up.

To make routine maintenance easier, we offer a convenient membership plan that features complimentary tune-ups, special discounts, and priority scheduling.

FAQs

Is short-cycling a heat pump bad?

As a general rule, yes. Even when it occurs because of easy-to-fix issues like dirty air filters, short cycling can lead to high energy bills and significant wear on your heat pump. If the underlying problem isn’t dealt with, it can cause the premature failure of your compressor.

How often should a heat pump cycle on and off?

It depends on the outdoor temperature, the thermostat settings, and other factors. In most cases, heat pumps may cycle on and off just two to three times an hour. However, this can vary based on the unit and operating conditions. To see if your heat pump’s cycles are normal, reach out for a professional inspection.

Can a dirty filter cause short cycling?

Yes, it can. A clogged filter reduces airflow, causing the heat pump to freeze up during its cooling cycles or to overheat during its heating cycles.

Will low refrigerant make my heat pump short-cycle?

Low refrigerant levels force the heat pump to work harder. If this causes the compressor to overheat, it can trigger the heat pump to automatically switch off. Similarly, low refrigerant can cause coils to freeze, resulting in short cycling.

Why does my heat pump short-cycle only in winter?

There are two potential options. First, your heat pump has issues that aren’t severe enough to cause short cycling until periods of peak usage. It’s also possible that the heat pump is switching to defrost mode, so it’s only appearing to short-cycle.

Can an oversized heat pump be fixed without replacing it?

Sometimes, we’re able to make adjustments or improvements so that you don’t have to replace it, but this doesn’t work in every situation. Schedule a professional evaluation to determine what makes sense for your oversized heat pump.

Should I turn my heat pump off if it’s short-cycling?

Turning it off can help you avoid causing damage to the compressor. Once the heat pump is off, schedule heat pump repairs to fix the root cause of the problem.

Does short cycling raise electricity bills?

Absolutely. Start-ups are the most energy-intensive part of the unit’s cycle, so repeated short cycling can result in significantly higher energy bills.

Prevent Your Heat Pump From Short Cycling

Although short cycling is a common problem, it isn’t something that you should ignore. By addressing it early, you can prevent additional wear and more expensive damage from occurring.

Struggling with on/off cycling in your Rancho Cordova home? Schedule your next heat pump tune-up today.

When the first heat wave arrives, you don’t want to end up sweating it out because of a frozen evaporator coil. If the coil gets too cold, moisture can start freezing. This results in wasted energy, potential damage to your compressor, and decreased comfort.

As a homeowner, there are a few troubleshooting tips you can attempt to resolve the issue. If they don’t work, then it’s important to schedule a maintenance appointment. To help you tackle this problem, we’ll cover the important steps you need to take, common causes, and the best prevention methods.

First Things First: What To Do If Your AC Coil Is Frozen Right Now

Before doing anything else, try the following troubleshooting checklist.

• Set your thermostat to “off” mode or raise the temperature so that your coils can thaw.
• Switch your fan to “on” to help with thawing.
• Allow the coils to thaw completely so that you can accurately diagnose the issue.
• Replace the air filter while you wait for the coils to thaw.
• Check to see if there are blocked return or supply vents.
• Use towels to soak up any water.
• If your coils refreeze before they’re able to thaw all the way, call a professional for help.

Important Safety Note: Never chip ice off of sharp objects. Do not continue running your AC while it is frozen.

What Causes an AC Coil To Freeze?

Your evaporator coil is responsible for absorbing heat. To do so, there must be warm airflow moving across the coils as well as the correct refrigerant pressure and charge. If any of these conditions are incorrect, the coil temperature can fall below freezing and ice will form.

The most common reason for frozen AC coils is airflow. If there isn’t enough warm airflow, the coils get too cold and start to freeze.

Top Causes of a Frozen Evaporator Coil

To get a better understanding of why this problem occurs, let’s dive into some of the most frequent causes and how you can spot them.

Dirty Air Filter

Signs: Weak airflow, dust on the evaporator coils, and a visibly clogged filter

This is the most common cause of frozen evaporator coils. A clogged filter can quickly restrict airflow. Once the coil becomes too cold, it starts to freeze. To fix this issue, try replacing the filter on time and with an appropriately sized filter.

Blocked Return Vents or Closed Supply Vents

Signs: Whistling noises, hot or cold rooms, and poor airflow

A blocked return vent or closed supply vent can starve your system of airflow. To troubleshoot, make sure rugs and furniture are away from vents. Additionally, you should make sure your vents are open.

Blower Fan Problems

Signs: Little to no air from the vents and unusual sounds

Sometimes, you may develop a dirty blower wheel, a faulty blower motor, or a malfunctioning capacitor. If any of these issues occur, the resulting lack of airflow will cause your coil to freeze.

This particular cause needs to be addressed by a professional. Our team will check the AC motor draw and how well your capacitor is functioning. Additionally, we will take airflow measurements to check your AC’s performance.

Dirty Evaporator Coil

Signs: Recurring frozen coils, even after the filter has been replaced

If your evaporator coil becomes dirty, the dirt can form an insulating layer around the coil and prevent proper airflow. In turn, this can lead to your coil freezing up repeatedly.

Dirty coils must be fixed by a professional. One of our experienced heating, ventilation, and air conditioning (HVAC) technicians can inspect the drain pan and clean the coil so that your system functions optimally again.

Low Refrigerant From a Leak

Signs: Recurring frozen coils, decline in cooling ability, hissing noises, and oily residue

If enough refrigerant escapes, it can lower the coil temperature too much. In turn, this can cause the coil to freeze.

It’s important to note that refrigerant doesn’t get used up. The only way for refrigerant levels to decline is if there is a leak. Because of this, it’s essential to call our HVAC technicians to schedule professional leak detection and repairs. Once the leak is fixed, we can recharge the refrigerant to the correct level.

Metering Device Issues (TXV or Fixed Orifice)

Signs: Inconsistent cooling and frequently frozen coils

If the refrigerant flow is incorrect, it can result in freezing, which must be dealt with by a professional. Our team can diagnose if you’re dealing with superheat or subcooling. Then, we can replace the metering device or adjust it as needed.

Ductwork Problems

Signs: Poor airflow in multiple rooms, uneven temperatures, and dusty, attic-like odors

Over time, duct leaks and collapsed ducts can occur, allowing air to escape. Similarly, poorly sized ducts can impact airflow. In both situations, the decline in airflow can result in frozen coils.

This issue requires a professional HVAC technician. One of our team members can perform a static pressure test and ductwork inspection. Then, we can seal and repair the ducts as needed.

Thermostat or Settings Issues

Signs: Incorrect setting

If your thermostat is set incorrectly, it can end up running too cold for too long. When combined with airflow problems, this can contribute to freezing issues. However, thermostats alone are rarely the cause of freezing. They are more likely to serve as a contributing factor.

To check for this problem, look at your settings. Make sure the temperature is not set too low. Additionally, verify that it is in “auto” or “cool” mode and not “fan” mode.

Outdoor Unit Issues That Contribute to the Problem

Signs: An outdoor unit clogged with debris and high run times

When your outdoor unit is at fault, it is often due to low outdoor airflow or a dirty condenser coil. These issues can impact the pressure level in your system and the overall performance.

You can try troubleshooting by removing plants and debris that are within 2 to 3 feet of the unit. If this is not enough, you may need to schedule a professional cleaning.

Ice on the AC Line Outside vs. Ice on the Indoor Coil: What It Means

When your suction line is sweating, this is normally due to condensation and moisture. It is not a cause for concern. However, suction line icing means that the line has dropped below freezing and is starting to ice over. If your line is iced, your indoor coil is likely iced up as well.

Keep in mind that ice on your suction line is merely a symptom of the problem and not the cause. You can troubleshoot the issue by checking for airflow problems and replacing the filter first. If these measures don’t work, you should schedule professional HVAC help.

How a Technician Diagnoses a Frozen Coil

Once our technician shows up at your home, they’ll work quickly to diagnose the underlying problem.

• Confirm that the coil has thawed before taking readings.
• Measure your airflow and static pressure.
• Inspect the filter and coil condition.
• Evaluate your blower performance.
• Make sure the refrigerant is charged correctly.
• Look for signs of a refrigerant leak.
• Inspect your ducts if low airflow is a chronic concern.

How To Prevent Your AC Coil From Freezing Again

To avoid this problem in the future, remember to perform the following preventative maintenance tips.

• Make sure your air filters are changed consistently. Depending on the manufacturer, this should likely be done every 30 to 90 days.
• Ensure your return vents are open and unblocked.
• Don’t close too many vents in your home.
• Fix duct leaks and restrictions.
• Clean your indoor coil and blower as part of your seasonal maintenance.

If you experienced frozen coils once, it is more likely that it will happen again. Because of this, it’s important to schedule a tune-up before peak heat arrives. To make routine tune-ups easier, you can sign up for our set-it-and-forget-it membership plan. Besides complimentary tune-ups, our plan also features discounts, special promotions, and priority scheduling.

FAQs

Can I run my AC if the coil is frozen?

There’s a big difference between what you can do and what is a good idea. If you continue to run an AC that has the coils frozen, it will eventually freeze up so much that it stops working entirely. Worse still, continuing to run your AC with frozen coils can damage your compressor and lead to thousands of dollars in damage.

How long does it take for a frozen AC coil to thaw?

It can take between 1 hour and 24 hours. In most cases, coils will thaw in less than 8 hours. However, this can vary based on your room temperature and how much ice has developed.

Does low refrigerant always mean a leak?

Yes. Refrigerant lines are a closed system. The only way for refrigerant levels to fall is if a leak has occurred.

Will a dirty filter cause ice on the coil?

Yes, because dirty filters limit airflow. Because less warm air is flowing over the coils, the coils become too cold and freeze over.

Why is my AC blowing warm air when the coil is frozen?

At this stage, the coils are no longer absorbing heat, so they can’t cool the air. Your blower motor still works, so it is essentially blowing warm air into each room.

Is ice on the outside AC pipe normal?

No, it isn’t. This indicates that your AC is freezing up, likely due to poor airflow or low refrigerant. Left untreated, this problem can severely damage your compressor.

How do I know if it’s airflow or refrigerant issues?

You can start by replacing your air filter and making sure your vents are open. If this does not work, you’ll need to have a technician test for airflow levels and refrigerant leaks.

Can a frozen coil damage my compressor?

Absolutely. Continuing to run your AC with a frozen coil places extra stress on your compressor and eventually results in it failing completely.

Prevent Frozen Coils This Summer

Before the first Sacramento heat wave rolls around, schedule an AC maintenance appointment. Frozen coils are a symptom of an underlying problem. Often, it means that your AC or heat pump is dealing with airflow or refrigerant issues. You can troubleshoot by thawing the AC, checking the filter, and verifying that there is adequate airflow.

If your AC continues to freeze up, it’s a sign you need a professional diagnosis. Reach out to Fox Family Heating & Air Conditioning for a springtime tune-up.

In a modern Sacramento home, high-tech heat pumps, ACs, high-efficiency furnaces, whole-home humidifiers, air purifiers, and other electronics are linked to your electrical panel. Because they contain sensitive electronics and microprocessors, there is a potential risk whenever power surges occur.

Worse still, power surges don’t just happen because of lightning. Each time a high-powered appliance is plugged in, it draws enough energy to cause a surge. Damaged wiring, overloaded circuits, and grid issues are also common causes of unexpected surges.

Because of this, we typically recommend homeowners install a surge protection system. A point-of-use surge protector can stop power surges from damaging the sensitive electronics in your heating, ventilation, and air conditioning (HVAC) system.

What Is an HVAC Surge Protector and What Does It Actually Do?

A surge protector is designed to divert or limit this excess voltage before it has a chance to harm your sensitive components. Surge protectors are primarily effective for protecting electronics. While motors can be damaged by power fluctuations, surge protectors aren’t able to protect them.

It’s also important to note what surge protectors can and can’t do. They operate differently from breakers. Rather than providing guaranteed protection against events, they offer a good level of coverage. Because of this, they are most effective when used as part of a layered approach.

What Causes Power Surges and Voltage Spikes?

Power surges and voltage spikes can occur because of a few common events.

• Lightning nearby, even when there isn’t a direct strike
• Downed lines from trees and accidents
• Power outages and restoration following the outage
• Generators or solar inverters are switching on
• Large appliances cycling on, such as HVAC systems, fridges, and sump pumps
• Utility switching and transformer issues
• Brownouts, which are periods of low voltage that cause added stress on electronics and motors

While you might think of dramatic lightning strikes when you hear someone talk about power surges, the reality is that surges are far more frequent and unassuming.

What Parts of Your HVAC System Are Most Vulnerable?

Today’s HVAC systems have microprocessors and delicate components that can become damaged by unexpected surges.

• Control Boards and Ignition Boards: These serve as the brain of the HVAC system and can become fried by a surge.
• Thermostat and Smart Controls: Microprocessors in modern thermostats can fail or have incorrect readings due to surge damage.
• Inverter and Variable-Speed Drive Boards: These components are incredibly sensitive and costly to replace.
• Outdoor Unit Electronics and Contactors: Because they are outdoors, these components are more exposed to lightning. When exposed to high voltage, coils in the contactor can burn out.
• Capacitors and Relays: Capacitors can develop a dielectric breakdown due to surges, causing a telltale bulge in the metal. Meanwhile, relays can fuse shut or stop working.
• Compressors: While compressors experience less direct risk, the damage can be more expensive. Surges can lead the compressor to overheat and fail.

Replacing electronics can quickly get expensive. This type of failure tends to occur fast and unexpectedly, leaving your loved ones without a heating and cooling system.

Breakers vs. Surge Protectors: Why a Breaker Isn’t Enough

A breaker panel is designed to protect against overcurrent and shorts, but not voltage spikes. When the overcurrent or short is detected, it trips the breaker, and power is shut off to that circuit.

Unfortunately, surges can occur too fast for a breaker to trip. Because of this, surge protectors are essential for protecting homes from damage.

• Myth: My breaker will protect my AC. In reality, the breaker can’t respond quickly enough to a power surge.
• Myth: Surges only happen during storms. Power surges can happen from appliances switching on, grid fluctuations, transformer problems, downed lines, and other issues.

Whole-Home Surge Protection vs. HVAC Surge Protector: Which Do You Need?

There are a few things you should consider if you are trying to decide between whole-home surge protection and an HVAC surge protector.

Whole-Home (Panel) Surge Protection

A whole-home surge protector is intended to protect the circuits on your circuit panel at their source. While it offers a good level of baseline protection, it doesn’t always eliminate spikes inside your home that occur at the equipment level.

Dedicated HVAC Surge Protector

A dedicated HVAC surge protector is installed near your outdoor unit, although it may sometimes be installed near indoor equipment. It is designed to provide a focused layer of protection where the risk is at its highest.

Best Practice Approach: Layered Protection

A whole-home and HVAC surge protector complements each other as part of a layered protection system. If an internal surge occurs or an external surge breaks through the whole-home surge protector, the HVAC unit protection is in place to protect your system. This type of approach is especially important for new systems, expensive boards, and variable-speed heat pumps.

Is an HVAC Surge Protector Worth It? Use This Quick Checklist

To decide if investing in an HVAC surge protector is worth it, consider the following questions. An HVAC surge protector is generally a good idea if:

• You have a relatively new HVAC system.
• Your area frequently experiences storms, outages, or flickering power.
• You have a generator or solar inverter that switches on.
• You use a heat pump or variable-speed system.
• Your home has suffered from blown capacitors, boards, and thermostats before.
• Your outdoor unit was expensive, so you want to extend its lifespan.

However, you might not need an HVAC surge protector if:

• Your system is old or near the end of its expected lifespan.

Often, most homeowners will end up installing a surge protector because it is much cheaper than the cost of a single board repair.

What To Look for in an HVAC Surge Protector

Once you decide to install a surge protector, remember to consider the following factors.

• Type: You need to get an HVAC-rated, outdoor-rated surge protector.
• Indicator Status: There should be an indicator light that shows when the unit is working.
• Protection Rating: A higher kiloampere (kA) rating is better because this shows the protector can handle a higher level of electrical current.
• Warranty: Don’t look for satisfaction guarantees. Look for product warranties, and make sure to read through the fine print.
• Location: Consider the location where you’ll install the protector. It will need to have a good grounding in a place that is close to your equipment.
• Professional Installation: To ensure your code compliance and the safety of your home, you should get the unit professionally installed.

It pays to be proactive about finding the right surge protractor. If you get a cheap, non-rated device, there’s an excellent chance it won’t be able to hold up outdoors.

Installation: Where It Goes and What Installation Usually Includes

During the installation process, a technician from Fox Family Heating & Air will take care of the following steps.

• Confirm your HVAC system type and electrical setup.
• Check disconnect and panel conditions to ensure your electrical system is safe and ready for the installation.
• Install and test the protector.
• Verify grounding.
• Clearly label the surge protector.
• Walk through the final setup with the homeowner. Demonstrate how the indicator light shows when the unit is working.

To see if a surge protector makes sense for your needs, schedule an evaluation today.

Common Questions and Misconceptions

Do I need a surge protector if I already have a whole-home surge protector?

Point-of-use surge protectors are still useful if you have a whole-home surge protector. In addition to offering a layered approach to defense, these surge protectors also protect your HVAC equipment from surges that occur within the home. This is especially important because whole-home systems primarily focus on protecting against surges from external sources.

Will a surge protector protect my compressor?

By diverting excess voltage to a grounding wire, a surge protector can protect your compressor from sudden energy spikes and power surges. Although compressors deal with indirect risks, surges can still cause overheating that can harm the compressor’s components.

Can a surge protector stop damage from a direct lightning strike?

No. Lightning contains millions of volts of energy, which is too much for a surge protector. To provide the best level of protection, you’ll likely need to install a lightning rod.

Do surge protectors wear out? How do I know if it still works?

Most surge protectors last for around two to five years. They have a “ground” or “protected” light that should be on all the time. If this status light flickers or shuts off, you need to get a replacement. Similarly, frequent tripping and signs of physical damage indicate that a replacement may be necessary.

Is a power strip surge protector the same thing?

No, they aren’t. A power strip is basically an extension cord with extra outlets. In comparison, a surge protector has the capacity to protect your electronics from electrical surges.

Do mini-splits or heat pumps need surge protection, too?

Absolutely. Surge protection is essential for any sensitive electronics that you don’t want damaged by lightning strikes. By investing in surge protection, you can reduce the likelihood of future repairs and replacements.

Improve the Safety of Your Home’s Electrical Systems

Surges can damage modern HVAC electronics, resulting in high repair costs and potential safety hazards. By investing in layered protection, homeowners can prevent damage and save money on HVAC repairs. If you are thinking about getting a new system or have unstable power in your home, installing a surge protector is a wise decision.

Ready to protect your HVAC equipment? At Fox Family Heating and Air Conditioning, we can recommend the best surge protection to keep your HVAC equipment functioning at its best.

You’ve just curled up with a good book and a blanket. In the distance, you can hear the furnace kick on. Before you can even finish the page, it suddenly shuts off and leaves your home feeling chilly.

Unfortunately, this type of problem is common in Sacramento. If your furnace is short cycling, it can immediately cause comfort issues and more expensive energy costs. Over time, it will also increase wear on components. Short cycling can also be due to a safety shut-off, so this isn’t an issue that can be ignored.

By understanding the warning signs and when to call a professional at Fox Family Heating & Air, you can keep short cycling from impacting your comfort and energy bills this winter.

What Is Furnace Short Cycling? (And Is It Ever Normal?)

Short cycling is when a heating cycle starts, ends, and restarts too soon. When your system is operating properly, you’ll normally notice two to three runtimes per hour and a consistent indoor temperature.

In many cases, short cycling is a safety response triggered by your system to prevent damage. Because of this, it’s important to address the underlying problem.

Key Signs Your Furnace Is Short-Cycling

You may be experiencing short cycling if:

• Your furnace shuts off within a few minutes of starting.
• It immediately starts again right after it stopped.
• Your home experiences uneven temperatures.
• It doesn’t feel like your home is heating up all the way.
• Your furnace seems to run intensively, but it doesn’t actually result in a warmer home.
• You notice frequent thermostat “calling” without an improvement in comfort.
• Your energy bills have gone up without any significant change in the weather.
• You hear loud start and stop sounds, clicking, or whooshing.

Important Safety Note: If you notice a burning odor, gas smell, soot, or repeated breaker trips, immediately stop using your furnace and call for help.

Most Common Causes of Furnace Short Cycling

To get a better understanding of how furnace short cycling works, let’s look at common causes, what you can check, and how a professional can help.

Dirty Air Filter or Restricted Airflow

Any airflow problems, like clogged filters, closed vents, and blocked returns, can cause the furnace to overheat. In turn, this can cause your limit switch to trip and shut down the furnace.

You can troubleshoot by replacing the air filter. Then, open your vents and make sure your return grilles are clear.

Thermostat Problems

If the thermostat’s location, calibration, wiring, or settings are wrong, it can lead to short cycling. For instance, placing a thermostat in the sun can cause it to shut off early.

Troubleshoot this malfunction by checking the batteries and temperature settings. Also, make sure the thermostat isn’t placed in the sun or a draft.

If these DIY tips don’t work, call a heating, ventilation, and air conditioning (HVAC) technician for help. We’ll evaluate the unit’s wiring, calibration, and setup to ensure it’s working correctly.

Flame Sensor Issues

For gas furnaces, a faulty flame sensor will shut off the furnace right away because it can’t detect the flame. The best way to fix this is by calling an HVAC technician for a professional burner inspection, cleaning, or replacement.

Overheating Due to Blower or Ductwork Issues

Blower motor issues, duct restrictions, and dirty blower motor wheels can cause high static pressure, which triggers a safety shutoff. With the help of a professional, you can test the blower, airflow, and ductwork for signs of a problem.

Blocked Venting or Intake

When an intake or vent is blocked on a high-efficiency furnace, it can cause a pressure switch fault and safety shutoff. On your own, you can look for signs that the visible exterior vent termination has a blockage. For a full venting inspection and combustion analysis, call a professional.

Limit Switch or Rollout Switch Tripping

If a limit switch or rollout switch triggers the furnace to shut down to prevent flame rollouts and overheating, this is an immediate safety issue. Immediately call a professional to investigate and fix the root cause.

Oversized Furnace

An oversized furnace will heat too fast and shut off right away. As soon as the temperature dips again, it will switch back on and do the same cycle. Besides impacting your energy bill, this can cause major swings between temperatures and less even heating performance.

Dirty Burners or Gas Pressure Issues

Poor combustion can result in shutdowns and make your furnace operate erratically. This issue must be fixed by a professional HVAC technician. Once one of our team members arrives at your home, they can ensure proper combustion by cleaning the burners and checking your manifold pressure.

Condensate Drain Problems

A condensing furnace relies on a condensate drain line. If it becomes clogged, the float switch will trip. You can check for the drain line blockage on your own if it is visible. Otherwise, you can call a professional to get the line cleared and trap checked. We will also verify proper pitch before we leave to prevent this from happening again.

What To Check First: A Safe, DIY Checklist

If you need immediate help with your furnace’s short cycling, try the following checklist.

• Set the thermostat to “Heat” mode and raise the temperature by 2℉ to 3℉ to see how the unit responds.
• Replace the air filter with a correctly sized filter.
• Ensure your supply vents and return are open and unobstructed.
• Check your furnace power switch.
• Make sure your panel door is closed all the way.
• Listen to see if the furnace ignites and shuts off right away, which indicates a flame sensor problem.
• Repeated shutdowns are signs of an issue. When this happens, turn off your furnace and schedule professional diagnostics.

Don’t DIY These Tasks

• Electrical component testing
• Gas pressure checks
• Burner adjustments
• Bypassing safety switches

When Short Cycling Becomes an Emergency

You should immediately stop using your furnace and call for help if you notice any of the following symptoms.

• The smell of rotten eggs or burning odors
• Soot around your furnace cabinet or vents
• Repeatedly tripped breakers
• A carbon monoxide alarm going off
• Visible flame rollout
• Booming when the furnace ignites

How a Technician Diagnoses Furnace Short Cycling

Once you reach out to our team, an HVAC technician will quickly come to your home to perform the following diagnostics.

• Confirm your thermostat is working correctly.
• Look for error codes.
• Review your safety switch history.
• Perform airflow and temperature rise testing.
• Inspect the flame sensor, burners, and venting.
• Test the pressure switch, inducer, and blower performance.
• Confirm that your sizing is correct.
• Check ductwork for performance issues.

How To Prevent Furnace Short Cycling

To avoid these problems in the future, remember to perform the following preventative steps.

• Replace filters according to your manufacturer’s replacement schedule. If your home has dust, allergies, or pets, it should be replaced more often.
• Ensure returns and vents are clear and open.
• Schedule seasonal tune-ups to catch common problems before they result in unexpected repairs.
• Ask for an airflow and duct pressure check if you’ve experienced repeated cycling.

To prevent future issues, join our membership plan. Besides complimentary tune-ups, it also includes priority scheduling and special discounts for members.

FAQs

Why does my furnace turn on and off every few minutes?

This is known as short cycling. It often stems from a dirty, worn, or faulty component. To avoid high energy costs and more frequent repairs, it’s essential to get this symptom looked at.

Can a dirty filter really cause short cycling?

Absolutely. When airflow is low, it can result in the furnace overheating. In turn, this causes the furnace to switch off as a safety mechanism.

Why does my furnace start, ignite, then shut off right away?

This is known as short cycling. It can be caused by multiple problems, but dirty heat sensors and clogged air filters are the most common issues.

Is furnace short cycling dangerous?

Yes, it is. Repeated short cycling can crack the heat exchanger, leading to carbon monoxide leaks in your home. It is also a potential fire hazard.

Will short cycling increase my energy bill?

The frequent on-and-off cycles lead to higher energy consumption because the start-up phase is the most energy-intensive part of the cycle. This type of cycling also prevents your furnace from reaching its optimal temperature, leading to higher energy consumption. Over time, short cycling will lead to significantly higher energy bills.

Can an oversized furnace be adjusted, or does it need replacement?

There are steps we can take to adjust the furnace, such as reducing the burner rate or blower speed. However, in many cases, the most effective option is to get an accurately sized furnace replacement.

What does a faulty flame sensor look like in real life?

If you’re looking at it, you’ll likely notice soot buildup, corrosion, or cracked porcelain. A faulty sensor may struggle to detect the flame, so it will likely cause short cycling when your unit is on.

How do I know if it’s the thermostat or the furnace?

When you adjust the temperature, listen for a click. This indicates the thermostat is correctly triggering the furnace to turn on. You can also troubleshoot thermostat issues by verifying that it is set correctly and changing batteries. For more extensive checks, reach out for professional help.

Keep Your Furnace From Short Cycling

While short cycling is typically fixable, it is important to catch it early. Otherwise, a minor problem can escalate into a costly, inconvenient breakdown. By performing routine maintenance, you can prevent this issue from recurring.

Concerned about your furnace’s on/off cycles? Schedule a diagnostic appointment with Fox Family Heating & Air Conditioning today.

As that first wintertime heating bill arrives, it’s normal to start looking for ways to save on costs. An unused guest room, empty office, or chilly hallway seems like a waste of money to heat. While it might be tempting to close up vents and stop heating unused spaces, this can actually cause problems for your heating, ventilation, and air conditioning (HVAC) system.

To start saving money, let’s look at how closed vents impact your HVAC system and at better ways to save money.

Quick Answer

You probably won’t break anything by closing just one vent. However, you can experience problems if you close many vents because the airflow has to go somewhere. Restricting it can change the air pressure inside your duct system.

Static Pressure Explained

Think of static pressure like the air traffic in your ducts. When you open your vents, the air can take different exits. Closing the vents shrinks the number of exits, causing increased pressure in your ducts. Basically, it’s like pinching the end of a garden hose to make a high-pressure spray of water.

What Really Happens When You Close Vents in Unused Rooms

Let’s take a closer look at what happens when you shut vents in your unused rooms.

Pressure Goes Up, Airflow Goes Down

While the blower is working just as hard, the system is restricting where that air can go. As a result, your home’s airflow drops.

The Air Doesn’t Magically Reroute Perfectly to the Rooms You Want

You can’t choose where the extra air ends up going. Instead, some rooms may end up with more and others with less. It all depends on your duct layout.

Leaks Get Worse

Because of the added pressure, more air can get pushed out of existing duct leaks in your crawlspace or attic.

Comfort Can Actually Get Worse

Your comfort level can become worse because of more drafts and uneven heating. You may also experience noisy vents and whistling sounds.

The Equipment Side: Why HVAC Systems Don’t Love High Static Pressure

HVAC systems struggle to deal with increased pressure. As a homeowner, you’ll likely notice the following symptoms and side effects.

• Blower Stress: The blower has to work harder to transfer air, leading to more frequent repairs.
• Heating Performance: The changed airflow can result in less heat reaching your rooms.
• Noises: Whistling, whooshing, and rattling sounds can occur because of the changed airflow.
• Reduced Energy Efficiency: You will potentially spend more on energy due to longer run times.
• Overheating: When airflow is restricted, your furnace can overheat and trigger safety limits. You may notice it short cycling more frequently.

Is It Ever Okay To Close Your Vents?

There are some general situations where you may be able to close your vents, but it’s important to exercise caution.

Usually Okay:

• Closing just one or two vents for a little bit in a small section of your home
• Closing a vent in a specific room that gets excess airflow so that it is better balanced
• Partially closing the vent instead of closing it all the way

Use Caution or Avoid:

• Closing too many vents in your home
• Closing vents in a room that has a thermostat or a key return pathway
• Closing vents in homes with older ductwork or airflow problems
• Closing vents in areas that have undersized returns

Why Your “Unused Room” Still Matters in Winter

Even though you might not be using the room all winter, it still matters to your home’s comfort and the health of your HVAC system. When vents and doors are cold, it can make the room extremely cold. The cold walls, floors, and drafts can cause neighboring rooms to experience comfort issues. If the unused room gets cold enough and has any exterior walls with plumbing, the frigid air can even result in frozen or burst pipes.

Better Ways To Save Money Without Choking Airflow

Rather than stifle your home’s airflow, try using the following tips to save money.

Use Smaller Thermostat Setbacks Instead of Closing Vents

A small setback can save money on energy costs when you’re away or asleep.

Keep Doors Open or Crack Them for Airflow Balance

Opening doors helps with airflow balance, especially if the room has problems with its return pathway.

Make Sure Your Filter Is Clean and the Right Type

The filter should be clean and the correct type. If it gets dirty, it can cause airflow restrictions that are just as bad as closed vents.

Address Drafts and Insulation First

Weatherstripping, filling gaps in your attic insulation, adding door sweeps, and repairing leaky ductwork can save you more money on energy costs than closing vents.

Consider Professional Airflow Balancing

By reaching out to our HVAC technicians for airflow balancing, you can get your dampers, returns, and supply distribution adjusted properly.

Zoning (Only if It Makes Sense)

If balancing isn’t enough to fix your comfort problems or you have a large home, you may want to use zoning. However, this step should only be taken if easier and more affordable alternatives don’t improve your family’s comfort.

Quick Homeowner Check: Signs You’ve Closed Too Many Vents

You may have closed too many vents if:

• You hear whistling or hissing noises in your vents.
• The airflow feels unusually weak.
• Your HVAC system turns on and off frequently.
• The furnace is louder than normal.
• Your home’s heat is uneven in different rooms.
• Some of your rooms are stuffy.

What To Do if You Have Already Closed Vents

To remedy your closed vents, start by reopening the majority of them. Returns should be open and unobstructed. Then, check to see if your filter needs to be cleaned or replaced.

If these steps don’t work, schedule an airflow check. Your system may need balancing or duct leak repairs.

The Goal Isn’t Fewer Vents, It’s Better Comfort per Dollar

When you close vents, it increases the static pressure in your home. This can negatively impact your comfort and the efficiency of your HVAC system. By adopting smarter measures to save energy, you can reduce your bills without overly stressing your HVAC system.

Reach out to Fox Family Heating & Air Conditioning for help with uneven heat and higher energy bills. We can quickly test your airflow to diagnose and fix the real culprit.

FAQs

Can closing vents damage my furnace?

Yes, it can. It creates added pressure, which can strain your blower motor and other components. If you have multiple closed vents or close them for extended periods of time, you’ll experience worse wear and tear.

How many vents are too many to close?

If more than 20% of your home’s vents are closed, it can lead to increased wear. Additionally, you shouldn’t close vents in any space that has a major return pathway. If you find yourself closing multiple vents, it’s always better to schedule an airflow inspection.

Should I close vents upstairs or downstairs in winter?

Your system is working at its hardest during the wintertime, so you avoid closing any vents. This can result in increased wear and more frequent repairs. If you want to reduce airflow in one area, it’s better to partially close a single vent instead of shutting every vent on an entire story of your home.

Is it okay to close vents in a room with the door shut?

No, it is generally not a good idea. Closed vents and shut doors limit airflow and increase pressure in your HVAC system.

What’s the difference between closing vents and having a zoned system?

A zoned system uses dampers to manage air distribution. While closed vents increase pressure and can cause damage, getting a zoned system can improve your home’s comfort, reduce energy costs, and ensure consistent airflow to the areas you are using the most.

It’s a typical winter day in Sacramento. You’re just getting ready for work when you notice that your thermostat says “aux heat.”

While it’s normal to see “aux heat” on your thermostat, it may also be a sign your system is working harder than necessary. To figure out if this setting indicates a problem, let’s look at what it means and when you should call for help.

“Aux Heat” in Plain English: Backup Heat for a Heat Pump

A heat pump transfers heat from one location to another. In comparison, furnaces actually create heat.

While modern heat pumps are incredibly efficient and can work in extremely cold temperatures, there may be times when the heat pump can’t keep up. Depending on the design of your heating, ventilation, and air conditioning (HVAC) system, you may have heat strips or a gas furnace installed for backup heat.

“Aux Heat” vs. “Emergency Heat”

Auxiliary heat is functionally different from emergency heat.

• Aux Heat: This heat automatically kicks on to help your heat pump reach and maintain a certain temperature. You’ll normally see it kick on during extremely cold temperatures or during times of heavy demand.
• Emergency Heat: Meanwhile, emergency heat must be manually selected by the user. It’s typically used if you have to shut down your heat pump or if the heat pump isn’t working. Because it costs more to run than the heat pump, its sole purpose is to help you get by until the heat pump is operational again.

Why Your Thermostat Shows “Aux Heat”

There are a few common reasons why your thermostat may show that it is using auxiliary heat.

It’s Cold Outside, and the Heat Pump Needs Help

When it’s extremely cold, auxiliary heat may need to switch on to support your heat pump’s effectiveness and your home’s comfort.

The Thermostat Is Trying To Recover After a Big Temperature Change

If you use big setbacks or need to warm up your home significantly in the morning, your heat pump may require “aux heat” mode to catch up.

Your Heat Pump Is in Defrost Mode

During defrost, the heat pump switches direction in order to warm up the outdoor coils and melt any ice. As a result, your heat pump must use a backup heat source to maintain your home’s temperature.

Your System Is Undersized, or Your Home Loses Heat Fast

If you have an undersized system, significant drafts, or insulation issues, your heating system may rely on auxiliary heat more frequently.

When “Aux Heat” Is Totally Normal (And Nothing To Panic About)

On the coldest mornings of the season, it’s normal to rely on auxiliary heat. Additionally, this mode is used for short periods of time when outdoor temperatures suddenly drop and during the defrost mode.

When “Aux Heat” Is a Red Flag (And Can Spike Your Bills)

You need to schedule professional heat pump repairs if you notice “aux heat” kicks on in the following situations.

• “Aux heat” is on constantly, even in warmer temperatures.
• Your home still won’t warm up.
• “Aux heat” kicks on after minor thermostat changes.
• It seems like your thermostat is stuck in “aux heat.”
• Your vents are producing lukewarm air.
• The electricity bill has spiked without any explainable reason.
• Your HVAC system seems like it is running nonstop.

The Comfort-Cost Connection: Why “Aux Heat” Can Get Expensive

While it’s important to stay warm, backup heat uses more energy than your heat pump’s normal operations. If your backup heat is on more, you’ll end up spending more on your energy costs. It’s essential to perform necessary repairs and schedule routine heat pump maintenance so that your system doesn’t have to rely on backup heat sources.

How To Reduce Unnecessary “Aux Heat” Without Freezing

When outdoor temperatures are freezing, you can’t afford to go without heat. Fortunately, there are a few things you can do to stay warm without relying on auxiliary heat all the time.

Thermostat Habits

Try to make small adjustments and gentle schedules instead of aggressive setbacks and major jumps. Don’t crank the heat all the way up to warm up your home.

Airflow Basics

Ensure your system is operating efficiently by regularly changing the filter. Additionally, clear your vents and returns.

Home Comfort Basics

Avoid heat loss by sealing drafts around your doors and windows. To improve circulation, keep your interior doors open.

Quick Troubleshooting: What To Check Safely at Home

As a homeowner, there are a few questions you can ask to troubleshoot why auxiliary heat is on.

• Did you recently adjust the thermostat’s schedule or add a major setback?
• Is your thermostat turned to “heat” and not “emergency heat”?
• Does the air filter look clogged or dirty?
• Is there uneven heating in specific areas, indicating a duct problem?
• Are there any rugs or furniture blocking your returns?

When To Call a Pro (And What We’ll Typically Look At)

You should call for heat pump service in the following situations.

• The HVAC system is unable to maintain your set temperature.
• You think there is an airflow or duct-related issue.
• Your home’s comfort level has declined, and you’re also experiencing high energy bills.
• You notice that “aux heat” appears frequently on mild days.

Aux Heat Isn’t “Bad”- It’s a Signal

When “aux heat” appears on your thermostat, it’s a sign your system is working the way it should. However, auxiliary heat should only be a backup. If it is running all the time or your home doesn’t stay warm, it’s time to get a professional inspection. Fox Family Heating & Air can check your airflow and HVAC performance to determine the underlying problem.

Book your next HVAC appointment to identify problems and enjoy consistent comfort this winter.

FAQs

Does “aux heat” mean my heat pump is broken?

No, it doesn’t. “Aux heat” comes on when your heat pump is using its backup heat source. It may be due to an especially cold day or because the heat pump is defrosting the outdoor coils. However, you should get help if you notice auxiliary heat coming on all the time or your home struggles to stay warm.

Why does “aux heat” turn on when I raise the temperature?

Sometimes, your heat pump needs an extra boost to get to the right temperature. This is a more common issue when major thermostat changes are involved. By using smaller changes and moderate setbacks, you can avoid relying on auxiliary heat.

Is it normal to see “aux heat” during defrost?

Yes, it is. The heat pump is warming the outdoor coils, so it isn’t heating your home. During this brief interlude, your auxiliary heat keeps your home warm.

How can I keep “aux heat” from running so much?

Moderate setbacks, smaller temperature differences, and consistent HVAC maintenance can help your heat pump perform its best during wintertime conditions.

Will a dirty filter cause “aux heat” to run more?

Yes, it can. If the filter is clogged, your airflow will suffer. This makes your heat pump less efficient, forcing it to rely on auxiliary heat more often.

Compared to snow country, Sacramento has relatively mild winters. Despite this, heating bills can still add up quickly. From setbacks that make you shiver to costly high thermostat temperatures, there are a few common thermostat settings that may be costing you money or comfort.

To help you stay comfortable this winter, we’ll dive into the best setback strategy for balancing comfort and energy consumption.

What a “Setback” Really Means (And Why It Works)

A setback is when you set the temperature back when you’re away or asleep. It saves you money by allowing you to avoid heating the house when you don’t need the added warmth. Even minor changes can have a real impact on your energy bills.

Before You Set a Schedule: 3 Quick Questions

To figure out the setback that works best for your budget and comfort needs, consider the following questions.

• When do you typically wake up and leave your home on weekdays?
• Does anyone stay home during the day, such as pets, remote workers, or children?
• Do you like sleeping in a cool or warm room?

The Comfort-First Rules (So You Don’t Feel Cold)

For the best results, remember the following comfort-focused tips.

• Stick to moderate setbacks. Changes don’t have to be dramatic to save you money.
• Set the thermostat to gradually warm up your home before you get up and before you return from work.
• If your thermostat is having a hard time recovering, set it to a warmer temperature during your away or asleep hours so that it doesn’t have to catch up so much.

Recommended Winter Thermostat Schedule for Sacramento (Weekdays)

To help you stay comfortable during the week, try adjusting your home’s temperatures to match the following schedule.

Weekday Schedule Template: Typical 9–5 Household

• Overnight (Sleep): You should set it so that it is a lower temperature but still comfortable.
• Morning (Getting Ready): For your comfort, set the thermostat a little higher as you wake up.
• Daytime (Away): When your home is empty, set the temperature back a bit.
• Evening (Home): Raise the temperature once everyone arrives home.
• Late Evening (Wind Down): As you get ready for bed, set the temperature back a little bit.

Why This Works

This type of schedule allows you to enjoy a warm home when you’re awake. When you’re asleep and snuggled up in blankets, you save money by having a lower temperature. The schedule lets you avoid waking up cold and ensures predictable run times.

Recommended Winter Thermostat Schedule for Sacramento (Weekends)

On weekends, people are often home more. The added hours of relaxation mean you’re moving less and need the thermostat to be set a little higher.

Weekend Schedule Template: Home More and Sleeping In

• Overnight: Set your overnight temperature to the same as weekdays.
• Morning: While the morning temperature should be the same as your weekday schedule, you should adjust the time because you wake up later.
• Midday: Keep a steady comfort range and don’t have any big swings.
• Evening: Opt for your preferred comfort setting.
• Night: Drop the temperature level at night.

Why Weekends Should Be Different

You don’t want to keep the same schedule on the weekends because the daytime setting will likely feel too cold. A smaller midday setback allows you to save money without hurting your comfort.

Schedules for Real Life

Each home has a different day-to-day routine. The following are a few different schedules that might work for you.

Remote Work Weekdays

For remote workers, a smaller midday setup may work. You may even want to get rid of your midday setting entirely. Instead, focus on saving money through late evening and overnight step-downs.

A School Schedule Household

If your family members attend school, set an early morning warm-up temperature. Then, use a stronger setback from mid-morning to mid-afternoon when everyone is away. Once your kids return home, set the temperature higher to ensure their comfort.

Someone Home All Day

Homes that have retirees, babies, or any other kind of caregiving needs likely need to stick to light setbacks only. Instead, you should focus on tiny reductions during periods of low activity and prioritize steady comfort.

Night Shift or Irregular Schedule

For these homes, build the schedule around your sleep blocks and not the clock. “Away” times should be determined by when you are actually away from home.

Smart Thermostat vs. Programmable vs Manual: What To Do Based on What You Have

To maximize your energy efficiency, keep the following tips in mind.

If You Have a Smart Thermostat

With smart thermostats, you can use gentle recovery and scheduling features. Try to avoid manual overrides because this can confuse your algorithm.

If You Have a Programmable Thermostat

For programmable thermostats, set up weekday and weekend programs. You can begin with simple blocks and adjust as you go.

If You Have a Basic Thermostat

With basic thermostats, the best option is to focus on your “Home” and “Sleep/Away” settings. Get used to changing the temperature at the same time each day so that it becomes a part of your day-to-day habits. For your long-term convenience and energy savings, consider upgrading to a smart or programmable thermostat.

The Biggest Mistakes That Kill Savings (And Comfort)

To ensure your comfort and energy efficiency, avoid these common mistakes.

• Making your morning miserable with huge setbacks
• Forgetting to set up weekend settings
• Weakening your system with blocked vents or dirty filters
• Keeping it at the same high temperature all day
• Cranking up your thermostat to catch back up following a setback.

When a Thermostat Schedule Won’t Fix the Problem

If you experience the following issues, you need to schedule professional repairs.

• One or more of your rooms won’t warm up because of a duct or airflow problem.
• Your HVAC system short cycles.
• No matter what you do, your home feels drafty because of duct leaks or insulation issues.
• Your furnace or heat pump is running nonstop.
• You have an older furnace that struggles to heat up your home after a setback.

Quick “Starter Schedule” Recap

For best results, adjust your thermostat slowly over 7 to 10 days until you get it just right. Additionally, remember to set a different weekend and weekday schedule based on when you are home, away, and asleep.

Stay Cozy This Winter

Before you make any drastic changes, start by adopting a realistic setback plan first. If this doesn’t improve the comfort of your home, call Fox Family for a professional inspection. We can test your thermostat performance, airflow, and thermostat setup to determine the best updates for your needs.

Take the guesswork out of your thermostat settings and maximize your energy efficiency with the help of Fox Family Heating & Air.

FAQs

Should I turn the heat off when I’m gone?

You should not turn it off entirely. This can cause the heat to drop too much, making it harder for your furnace to catch up. Instead, set the temperature back a few degrees.

How big should a setback be so that it still feels comfortable?

A setback of 3°F to 5°F will allow you to save money while maintaining your comfort. If you feel comfortable at lower settings, you can save more money by adjusting your temperature by up to 10°F.

Is it bad for my furnace to recover from setbacks?

As long as the setback is moderate, it isn’t a problem. If you have a smart thermostat, your thermostat can also adapt to how long it takes to warm up to the new temperature.

Why does my house feel cold even when the thermostat says it’s warm?

This could be due to a draft, thermostat placement issues, humidity problems, or uneven heating. To determine and remedy the root cause, you’ll need to schedule an HVAC inspection.

Do weekends really need a different schedule?

In most cases, weekends require a different thermostat schedule. When you wake up, how long you are home, and when you go to bed can all change on weekends. Unless your schedule is exactly the same on the weekends and weekdays, you’ll likely need to adjust it.