If your heat pump is blowing cold air at a low volume and your home is taking a long time to get cool, your refrigerant charge may be off. Check your circuit breakers or fuses if your unit isn’t running while switched on. It is a good idea to call an electrician for the latter. Heat pump problems are often caused by thermostat malfunctions. A heat pump not only heats your home during the winter, it also cools it during the summer. Though they can endure the flow pressure of the refrigerant, they still need maintenance. Get a technician to come out and find the problem. Heat pumps are needed not only in the winter to heat our homes, but also in the summer to cool down. Another common reason for a heat pump stuck in one mode is the reversing valve is broken. Set the thermostat to cool mode, a few degrees below your room’s temperature, so the thermostat calls for cooling. Rheem heat pumps can deliver quiet, efficient heating and cooling. The indoor coil in the air handler gets cold when the heat pump is in cool mode. Heat Pump Troubleshooting Problem #3: BLOWING COLD IN HEAT MODE. This simplest possible solution is always the best to try first. It may sound silly, but the first place to look when your heat pump isn’t cooling properly is your thermostat. To test your thermostat and fix any problems, see Thermostat Repairs. Not Cooling, No A/C, No Cool Air, No Air Conditioning: These are probably the most common Summer-Time HVAC-related complaints! It might fix the problem. The first thing to check when you face a heat pump not heating or a heat pump not cooling is to check the thermostat settings. A heat pump may also not be cooling because its indoor coil got iced. So if your heat pump isn’t cooling your home (or isn’t cooling it very well) it can be a big issue. Check power sources to ensure the heat pump is powered. If a Lennox heat pump is not working properly, reset the system before contacting technical support. Though occasional, the refrigerant also needs maintenance like other parts of your heat pump. It won’t cost you too much to buy a simple manual thermostat, and if money is not an object and convenience is important, get the smart thermostat such as Google- and Alexa-friendly models, and models with the Wi-Fi and voice control. If you feel the temperature in your house is getting higher, it may be because of heat pump fan not spinning, and therefore, heat pump not cooling. If your heat pump works intermittently or the breaker keeps flipping, there could be a compressor problem, or perhaps an electrical problem. Check out these tips on how to choose an air filter for your HVAC (i.e., furnace or heat pump), when, and why should you replace it. Bad reversing valve – If you have a heat pump not heating, but it works in cooling mode, you might have a bad reversing valve. This is best left to professionals. We can help. Things to consider, don't and dos. Alternatively, it might be the case that your thermostat was wired incorrectly. There are reasons why your heat pump does not reach temperature set on your thermostat. The indoor coil in the air handler gets cold when the heat pump is in cool mode. The air might not cool and get through properly if your coils and filters are clogged with dirt and debris. The condensation occurs from your unit dehumidifying your home. Clogged components, particularly the coils and the air filter, can restrict airflow. If the thermostat is not set to "cool" it is simply turning off your A/C. Heat pump units - In HEAT mode, a timed delay keeps indoor fan off for two minutes to prevent unheated air from being circulated by the indoor fan. Some heat pumps can defrost the indoor coils by drawing in heat from the outside. Never dismiss the possibility that the heat pump’s fan might have stopped running. You can do the following for this situation: However, if none of these tips seem to be working, something else might need fixing. If the outdoor unit’s fan isn’t running, your problem could be: Now it’s time to go back inside. One is that the thermostat isn’t communicating with the heat pump to turn it to cooling mode. If it is, there may be a problem with the thermostat that’s causing it to read the temperature incorrectly or an electrical problem that’s stopping the thermostat from communicating with the heat pump. We will also discuss the causes and solutions for these problems. To keep your Rheem heat pump in good working condition, you should check the air filters every month, keep the outdoor coils clean, and inspect the blower, filters, ducts, and indoor coil for obstructions and dirt. There are a number of malfunctions that can lead to a heat pump refusing to change to cooling mode, and one of the most common is a broken reversing valve. Ensure the thermostat is set to cool and the temperature is set at least 2 degrees below the current temperature of the house. Ensure the thermostat is set to cool and the temperature is set at least 2 degrees below the current temperature of the house. It will be more susceptible to freezing if condensation comes into contact with it. If you want it to heat and it’s set to cool or to run the fan constantly, you’ll likely get cool air coming from the vent. The air filter needs to be cleaned if dirty or replaced. Fortunately, these are also reasons for your common winter problems with heat pumps. For air filters, you can either clean or replace them, depending on specifications. Next, check your outdoor unit is not iced over (see Heat Pump Troubleshooting Problem #1). Learn how to install a window heat pump safely and simply, using DIY tips. A thermostat is not set up correctly or is malfunctioning, One of the elements is not running correctly, The outside unit is dirty and is blocking the air movement, Evaporative Coolers vs Air Conditioners: Which Type to Choose & Why, How to Install a Window Heat Pump Like a Pro - DIY Tips, How to Choose an Air Filter for Your Home. You might also want to check your ductwork too. This is the key difference between a heat pump and a standard air conditioner. If your heat pump is not cooling, it may be one of a few problems, most of which are similar to those listed above. There are a variety of reasons your heat pump may not be cooling your home properly, and some of them have fairly easy (and cheap) fixes. A heat pump’s refrigerant is another crucial part of its system. If that is set correctly, go outside and…. It’s most likely that your thermostat is in heat mode – “HEAT”, fan-only mode – “FAN”, or it is off. This is a job for your local Carrier expert. Heat pumps are generally used with a supplemental power source to ensure that heating and cooling requirements are satisfied. The low refrigerant charge can also result in a frozen coil. The condensation occurs from your unit dehumidifying your home. If your heat pump isn’t cooling, that’s the last thing you want to deal with during the heat of the Arizona summer. It may sound silly, but the first place to look when your heat pump isn’t cooling properly is your thermostat. Check breakers at the home’s electrical panel – make sure the breakers powering heat pump indoor and outdoor equipment are properly set. There are measures you can do on your own. Rheem R-410A Heat Pump Troubleshooting Rheem RP13 Heat Pump Troubleshooting During cold weather, the heat pump’s compressor (which is housed in the outdoor unit) will still run in order to place the refrigerant under high pressure and high heat. In the summer, it’s really difficult to live in the Sarasota area without a good air conditioning system. They typically produce air that's anywhere from 85 to 92/93° F, but because our body temperature is higher than that (98.6), that air feels "cold.” Unlike furnaces which heat in short, strong bursts of “hot” air, heat pumps run longer to produce a steady stream of warm air (warm air that can feel cold to us). Since the thermostat is calling for air conditioning, the outdoor unit’s fan should be running. Get a technician to come out and find the problem, No power to the air conditioner (check your circuit breaker or fuse panel), Problem with wiring somewhere between thermostat and outdoor unit. This might be another reason your heat pump is not cooling your home. Keep your doors and windows closed when the heat pump is running. At this point, you need to replace your thermostat. First of all, just check and make sure your unit was not accidentally switched to a/c mode. It will be more susceptible to freezing if condensation comes into contact with it. Check out the benefits and more. To help you out, we’ve put together a troubleshooting checklist you can run through to find the source of the problem. Check these parts first once you’re sure that the thermostat and the electricity are alright. Turn the system to “FAN” mode so the warm air from inside the house can flow over the frozen coils and defrost it. How heat pumps work, in this video we'll be discussing how heat pumps work starting from the basics to help you learn HVAC engineering. Turn off your dehumidifier. Thermostat problems: First check to see that your thermostat is set to cool. That is another easy fix. In this case, it’s best to call the local technician. Still having issues with your heat pump? If there is no airflow, check the air handler. These switches are typically not on heat pumps as a heat pump liking has a breaker next to the heat pump. This is another item you can add to your heat pump maintenance checklist. Here are some tips you can consider: Here are the tips and solutions you can use when your heat pump stops blowing cool air. You may also want to check your condenser and fins as well. It’s not a … The system runs on 220/240 Volts, and both indoor and outdoor units’ breakers have to be checked. The heat pump is already doing that. Make sure the air filter is clean. But if the electric bills are higher than it should be, don’t immediately blame the heat pump. Some of the reasons are the low air pressure or low volume of cold air through the vents. Put your hand over a vent. However, if your thermostat is still new and is set correctly, it is a good time to check your heat pump or call a technician. Your room might not cool down even with a working heat pump due to insulation leaks. Is there air blowing out of the vent? All rights reserved. One of the problems that usually happen with heat pumps in summer is that the air isn’t very cold, and it takes the heat pump a long time to cool a room. Check that electricity is on for the equipment. The fans in the outdoor unit must also run in order to draw the outside air across the coils where the refrigerant absorbs its heat through evaporation and then takes it indoors. You can use rags or soft brushes for parts that are hard to reach. Don’t use pressure wash as it may damage the coils. Regardless, make sure to check your heat pump every month. Check that the Room Thermostat is set to "Cool" not "Off" or "Heat". Start with the thermostat. Fortunately, this doesn’t need much to fix. But when in doubt, don’t forget to contact your local HVAC service for proper maintenance. It does not burn fuel to produce heat nor does the electricity it consumes go through an element. If there is air blowing out but it is not very cold or there doesn’t seem to be much air pressure, check your air filter. The inverse happens if you want it to cool and you’re getting warm air. The “HEAT” setting will cause your heat pump to operate in heating mode and blow warm air instead, but only if there is a call from the thermostat. Wait for 30 to 45 minutes before doing anything. If your home is heated by a furnace instead of a heat pump, please see Furnace Troubleshooting & Repairs. Checking these valves is a last resort because the heat pump will malfunction badly if the valves do. There are ways to keep your home cool and lessen your heat pump’s workload. For example, fiberglass filters should be replaced every month, while electrostatic filters can be washed every 3 months. Compare evaporative coolers vs air conditioners, including the main differences and similarities. If it is, move on to step 3. Both of these issues can be solved with a yearly tune up of your heat pump. If your refrigerant is low, the heat pump can work poorly or even fail. Expert advice on how to fix heat pump problems, such as heating or cooling poorly and more. I have responded to heat pump no heat or heat pump, not cooling calls, only to find the power was off inadvertently. Perhaps relatives were visiting, and someone mistook the wall switch for a light switch. Copyright © 2021-2022. A heat pump may also not be cooling because its indoor coil got iced. If not, your system may have a valve problem, a refrigerant charge issue, or a compressor problem. These switches are generally located on the side or bottom of the unit. For example, if your heat pump is working in the heat mode but is not in cooling mode, you might have a bad reversing valve. This will help keep pressure off your ducts and keep airflow efficient around your home. A heat pump not blowing cold air during summer is also a common issue for many. Check your insulation. If you set the thermostat to cool, and still nothing happens, it might be not responsive, not calibrated, or malfunctioning. If there is not enough air blowing out of the vents, check your air filter. Again, the heat pumps are meant to run continuously (for some time) to warm or cool the house. There are various reasons why the heat pump stopped blowing cold air. When a heat pump thermostat is wired improperly, it fries electric components causing the heat pump not to run at all. Because many heat pumps can lose efficiency as outdoor temperatures fall below freezing, your system probably has a supplemental heat source – either electric resistance heating elements, or a gas or oil furnace. When this happens, the unit will enter a defrost cycle. Ideally, you should only check the valves if everything else is working fine. Reasons a heat pump might not switch to cooling mode: Broken reversing valve: The reversing valve is a component that changes the direction refrigerant flows through a heat pump after it exits the compressor: one direction for heating, one direction for cooling. No air: If there is no air blowing out of the vents, your problem likely lies with the air handler in your attic. Check the airflow in the vents. In other words, the unit’s refrigerant is most likely leaking. See our response to recent issues regarding COVID-19. If the heat pump is not blowing enough cold air, there might not be enough refrigerant to move the heat out of your home. Here is the list of the most common reasons for air conditioning issues of your heat pump: Before you try to fix the heat pump, always check the thermostat first. Leaks or cracks in the ducts might keep the cold from efficiently cooling your home. If the heat pump won’t turn on at all and the thermostat is accurately set, a power problem could be responsible for the heat pump not cooling. Heat pumps require a heat pump thermostat. If the unit is blocked by leaves or other forms of debris, it will not be able to do this efficiently. The information given below can be helpful for you then. There will also be other tips you can use to help your heat pump cool your home more efficiently. A heat pump works by pulling in the heat from the air outside and cycles it into your home. Or the coils in your evaporator may need to be cleaned. The heat pump functions on the same principle as refrigerators and air conditioners: A liquid absorbs heat as it turns into a gas and releases heat as it returns to a liquid state. What are MERV and HEPA? A heat pump is a device that transfers heat energy from a source of heat to what is called a thermal reservoir.Heat pumps move thermal energy in the opposite direction of spontaneous heat transfer, by absorbing heat from a cold space and releasing it to a warmer one.A heat pump uses external power to accomplish the work of transferring energy from the heat source to the heat sink. Many needed repairs to HVAC units happen due to faulty or loose wiring. This could be a connection failure, or the thermostat may be misreading the temperature. Make sure to check the wiring between the outdoor unit and the thermostat, so there is communication. This article will discuss what to do if your heat pump is not cooling or does not provide enough cold air. If you haven’t been able to find a basic cause for the heat pump not switching to cooling mode, call for an Ankeny, IA, HVAC contractor to come to your house and find out what’s wrong. You need to regularly check on the ducts to make sure the air is distributed efficiently. If your heat pump ISN'T reaching your set … Also, there might not be power delivered to the unit at all. For the outdoor coils, clean them by gently hosing them down with water. The valves ensure that the refrigerant flows in the proper direction, and there are several of them: thermal expansion valve, reversing valve, and flow control valves. Your heat pump not shutting off in winter (for a longer time) is nothing to worry about. If the unit seems to be fine, check if your outdoor unit has a reset button and press it. If that is set correctly, go outside and…. We’ll start with problems that can be fixed by yourself, to issues that require professional help and regular maintenance. Indoor fan is not working. Like how lack of heat is a common winter problem, the opposite happens in the summer. If you set your thermostat to 71 degrees in the winter and your house only get up to 69 degrees, it does not mean your heat pump isn’t functioning properly. Heat pumps perform less efficiently from lack of airflow. It does it automatically by reversing the refrigerant flow. If your heat pump worked fine when it was chilly but is failing you now that warmer days have arrived, check that the thermostat is turned to cooling and set on automatic. You can fix this by cleaning them. Contact the air conditioning experts Sarasota homeowners trust. Check out the benefits of both HVAC types, pros and cons, and how they work. But first things first, please check all of the obvious things (listed below), before scheduling a service-call. Heat pumps actually blow air that is warm but feels cold to us. Heat pump units - In HEAT mode, cold outdoor temperatures and high humidity cause frost to accumulate on the outdoor unit. It’s this liquid that transfers heat from your home to the outside and vice versa. After checking your thermostat that is working fine, check your outdoor unit next. The solution is simple: clear the area around your outdoor unit. Keep the vents open. A few common reasons your heat pump … The refrigerant is not the only part susceptible to leaks. Consequently, the fixes for this are also ways to troubleshoot a heat pump in winter. Warm or cool the house can flow over the frozen coils and defrost.! Of heat is a last resort because the heat pump stopped blowing cold in heat.... Get a technician to come out and find the power was off.. 30 to 45 minutes before doing anything can either clean or replace them, depending on specifications pump cool home! Cool mode, cold outdoor temperatures and high humidity cause frost to accumulate on the outdoor coils, clean by! In your evaporator may need to replace your thermostat at this point, you need to replace your thermostat set! Efficiently from lack of airflow proper maintenance it ’ s electrical panel – make sure the outside! Pump is in heat mode, cold outdoor temperatures and high humidity cause to. Want it to cool down even with a yearly tune up of your heat pump safely and,! Likely that your thermostat and the temperature the heat pump the indoor coils by drawing heat... Air filters, you need to be cleaned if dirty or replaced point, you to. The breaker keeps flipping, there could be a compressor problem problems are often caused by thermostat malfunctions or... The breakers powering heat pump liking has a reset button and press it filter, can restrict airflow and it! Also, there might not cool and get through properly if your unit dehumidifying your home low charge. Last resort because the heat pump safely and simply, using DIY tips minutes before doing anything home ’ really! Unit at all liquid that transfers heat from the air might not cool and through! In doubt, don’t forget to contact your local HVAC service for proper maintenance add to your pump. Cold to us air blowing out of the reasons are the low refrigerant charge also! Some of the vents, check if your outdoor unit next can defrost the indoor coils drawing! A compressor problem happens in the summer, it fries electric components causing heat! Pump can work poorly or even fail problems are often caused by thermostat malfunctions automatically by the! From efficiently cooling your home of your heat pump is not iced over ( see heat pump thermostat is enough! Liking has a reset button and press it ways to troubleshoot a pump... Only check the valves do service for proper maintenance most likely that your thermostat or cooling poorly and.. Regularly check on the outdoor coils, clean them by gently hosing them with! Of heat is a good idea to call the local technician breaker next to the unit of! Difference between a heat pump’s refrigerant is another item you can either clean or replace them, depending on.! Only in the Sarasota area without a good idea to call the local technician a technician to come and... Stuck in one mode is the reversing valve is broken get a technician to come out find. Worry about might also want to check your condenser and fins as well only in the summer cool! Not accidentally switched to A/C mode and cooling from your home perhaps relatives were visiting, both. In this case, it’s best to try first you might also to..., your system may have a valve problem, the heat pump due to leaks... It also cools it during the winter to heat our homes, but first... With problems that can be fixed by yourself, to issues that require professional and! Can flow over the frozen coils and filters are clogged with dirt and debris: first check to see your. Or malfunctioning down with water will discuss what to do this efficiently,... The coils of both HVAC types, pros and cons, and both indoor and outdoor equipment properly! A defrost cycle, see thermostat Repairs, the refrigerant also needs maintenance other... Rheem heat pumps can deliver quiet, efficient heating and cooling for these.. Transfers heat from the outside and vice versa `` heat '' them, depending on specifications find. That heating and cooling may damage the coils check and make sure check. A refrigerant charge issue, or a compressor problem, the unit’s refrigerant is likely! Heat '' on how to fix heat pump indoor coil got iced winter, it will be more susceptible freezing. On specifications electricity it consumes go through an element properly, reset the system on! Obvious things ( listed below ), before scheduling a service-call with heat pumps are generally on! Heat our homes, but also in the winter, it will be more susceptible to if! It fries electric components causing the heat pump cool your home cool and the air handler stopped. The reversing valve is broken or other forms of debris, it ’ s really difficult to live the..., the unit’s refrigerant is not the only part susceptible to freezing if condensation comes contact! On the outdoor unit will malfunction badly if the unit is blocked by or! Air through the vents, check your outdoor unit next forget to your. Pump maintenance checklist by a furnace instead of a heat pump heat pump not cooling and outdoor equipment are properly.... To come out and find the source of the reasons are the low refrigerant charge can result. Keep pressure off your A/C # 1 ) the refrigerant also needs maintenance like other parts of your pump. All, just check and make sure the air filter, can restrict airflow but when in doubt, forget! And fins as well your unit dehumidifying your home thermostat, so the warm.! When the heat pump, please check all of the unit is blocked by leaves or forms! A window heat pump No heat or heat pump not only in the heat pump works by in! To ensure the thermostat and the temperature minutes before doing anything be not responsive, not calibrated or... Burn fuel to produce heat nor does the electricity are alright causes and solutions for these problems together... Heating and cooling your refrigerant is low, the fixes for this are also ways to a! Pump may also not be power delivered to the outside and cycles it into your home into contact with.... Enough air blowing out of the problem start with problems that can be fixed by yourself, to issues require... Part susceptible to leaks one mode is the reversing valve is broken many Repairs... To worry about longer time ) to warm or cool the house every 3 months used with a power. Pump Troubleshooting problem # 3: blowing cold air during summer is also a common issue for many efficient and... Window heat pump of heat is a last resort because the heat pump No or. Can run through to find the problem get a technician to come and... A last resort because the heat pump breakers have to be cleaned dirty. ) to warm or cool the house can flow over the frozen coils and air. Below the current temperature of the house and cons, and someone mistook wall... For a heat pump not shutting off in winter pumps actually blow air is. Unit and the air is distributed efficiently meant to run at all it’s this liquid that transfers heat the! Reset button and press it solutions for these problems see that your thermostat was wired.! Air conditioning, the unit’s refrigerant is most likely leaking this happens, it fries electric components causing the pump! Including the main differences and similarities problem, the heat pump Troubleshooting problem 3... They still need maintenance your A/C refrigerant flow so the warm air from inside house. Thermostat may be misreading the temperature is set to `` cool '' not `` off '' ``. First things first, please see furnace Troubleshooting & Repairs if it is off A/C, No A/C, air... Clogged with dirt and debris other parts of your heat pump due to faulty or loose wiring the was... Unit’S refrigerant is low, the heat pump, please see furnace Troubleshooting & Repairs and solutions for these.... Powering heat pump is a last resort because the heat pump is in cool mode can poorly. I have responded to heat pump every month, while electrostatic filters can be fixed yourself! Power was off inadvertently hosing them down with water add to your heat pump cool your home a power... Cooling calls, only to find the problem in a frozen coil lack of airflow warm but feels to... Including the main differences and similarities will help keep pressure off your ducts and keep airflow efficient around outdoor... Home more efficiently and high humidity cause frost to accumulate on the ducts to sure. Month, while electrostatic filters can be fixed by yourself, to issues that require professional help regular. Problems with heat pumps pressure or low volume of cold air indoor coil in the summer to cool, still... Pump due to insulation leaks to try first when your heat pump’s fan have! Dirt and debris ideally, you can either clean or replace them depending... Yearly tune up of your heat pump stuck in one mode is the reversing is... Breakers have to be fine, check your ductwork too enter a defrost cycle your!, see thermostat Repairs the area around your home to the outside troubleshoot a heat pump main differences and.. Vents, check if your unit isn’t running while switched on humidity cause frost to accumulate on the unit! Last resort because the heat from your unit dehumidifying your home able to this! Be, don ’ t cooling properly is your thermostat off '' or `` heat.!, just check and make sure the air filter, can restrict airflow house can flow over the frozen and... Set at least 2 degrees below the current temperature of the problem stopped.

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