Clogged components, particularly the coils and the air filter, can restrict airflow. Fortunately, this doesn’t need much to fix. Though occasional, the refrigerant also needs maintenance like other parts of your heat pump. If the heat pump is not blowing enough cold air, there might not be enough refrigerant to move the heat out of your home. 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. If a Lennox heat pump is not working properly, reset the system before contacting technical support. These switches are generally located on the side or bottom of the unit. Check your insulation. This is a job for your local Carrier expert. 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. Bad reversing valve – If you have a heat pump not heating, but it works in cooling mode, you might have a bad reversing valve. Perhaps relatives were visiting, and someone mistook the wall switch for a light switch. 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). 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. Turn off your dehumidifier. Start with the thermostat. Check breakers at the home’s electrical panel – make sure the breakers powering heat pump indoor and outdoor equipment are properly set. Heat pumps perform less efficiently from lack of airflow. You may also want to check your condenser and fins as well. Expert advice on how to fix heat pump problems, such as heating or cooling poorly and more. It’s this liquid that transfers heat from your home to the outside and vice versa. Checking these valves is a last resort because the heat pump will malfunction badly if the valves do. 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. See our response to recent issues regarding COVID-19. If not, your system may have a valve problem, a refrigerant charge issue, or a compressor problem. One is that the thermostat isn’t communicating with the heat pump to turn it to cooling mode. The air filter needs to be cleaned if dirty or replaced. We’ll start with problems that can be fixed by yourself, to issues that require professional help and regular maintenance. This simplest possible solution is always the best to try first. The air might not cool and get through properly if your coils and filters are clogged with dirt and debris. 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 system runs on 220/240 Volts, and both indoor and outdoor units’ breakers have to be checked. Also, there might not be power delivered to the unit at all. Don’t use pressure wash as it may damage the coils. The information given below can be helpful for you then. Check the airflow in the vents. These switches are typically not on heat pumps as a heat pump liking has a breaker next to the heat pump. 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. 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. 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 do the following for this situation: However, if none of these tips seem to be working, something else might need fixing. Heat pump problems are often caused by thermostat malfunctions. It’s not a … Check power sources to ensure the heat pump is powered. Here are some tips you can consider: Here are the tips and solutions you can use when your heat pump stops blowing cool air. The indoor coil in the air handler gets cold when the heat pump is in cool mode. At this point, you need to replace your thermostat. That is another easy fix. Still having issues with your heat pump? There are ways to keep your home cool and lessen your heat pump’s workload. Ensure the thermostat is set to cool and the temperature is set at least 2 degrees below the current temperature of the house. The refrigerant is not the only part susceptible to leaks. If you set the thermostat to cool, and still nothing happens, it might be not responsive, not calibrated, or malfunctioning. You might also want to check your ductwork too. Never dismiss the possibility that the heat pump’s fan might have stopped running. Your heat pump not shutting off in winter (for a longer time) is nothing to worry about. In this case, it’s best to call the local technician. 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. Ensure the thermostat is set to cool and the temperature is set at least 2 degrees below the current temperature of the house. Keep your doors and windows closed when the heat pump is running. If that is set correctly, go outside and…. 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. This is another item you can add to your heat pump maintenance checklist. Rheem R-410A Heat Pump Troubleshooting Rheem RP13 Heat Pump Troubleshooting Fortunately, these are also reasons for your common winter problems with heat pumps. When a heat pump thermostat is wired improperly, it fries electric components causing the heat pump not to run at all. 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. So if your heat pump isn’t cooling your home (or isn’t cooling it very well) it can be a big issue. This could be a connection failure, or the thermostat may be misreading the temperature. Like how lack of heat is a common winter problem, the opposite happens in the summer. If your heat pump is not cooling, it may be one of a few problems, most of which are similar to those listed above. You need to regularly check on the ducts to make sure the air is distributed efficiently. But when in doubt, don’t forget to contact your local HVAC service for proper maintenance. Put your hand over a vent. In the summer, it’s really difficult to live in the Sarasota area without a good air conditioning system. Rheem heat pumps can deliver quiet, efficient heating and cooling. It will be more susceptible to freezing if condensation comes into contact with it. Heat pumps are needed not only in the winter to heat our homes, but also in the summer to cool down. Your room might not cool down even with a working heat pump due to insulation leaks. To help you out, we’ve put together a troubleshooting checklist you can run through to find the source of the problem. Compare evaporative coolers vs air conditioners, including the main differences and similarities. The inverse happens if you want it to cool and you’re getting warm air. No air: If there is no air blowing out of the vents, your problem likely lies with the air handler in your attic. I have responded to heat pump no heat or heat pump, not cooling calls, only to find the power was off inadvertently. If the unit is blocked by leaves or other forms of debris, it will not be able to do this efficiently. Consequently, the fixes for this are also ways to troubleshoot a heat pump in winter. Check out the benefits and more. If there is not enough air blowing out of the vents, check your air filter. A heat pump’s refrigerant is another crucial part of its system. To test your thermostat and fix any problems, see Thermostat Repairs. We will also discuss the causes and solutions for these problems. There are measures you can do on your own. For example, fiberglass filters should be replaced every month, while electrostatic filters can be washed every 3 months. 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. This article will discuss what to do if your heat pump is not cooling or does not provide enough cold air. Heat pumps are generally used with a supplemental power source to ensure that heating and cooling requirements are satisfied. Turn the system to “FAN” mode so the warm air from inside the house can flow over the frozen coils and defrost it. This will help keep pressure off your ducts and keep airflow efficient around your home. It’s most likely that your thermostat is in heat mode – “HEAT”, fan-only mode – “FAN”, or it is off. Check that the Room Thermostat is set to "Cool" not "Off" or "Heat". Some of the reasons are the low air pressure or low volume of cold air through the vents. Copyright © 2021-2022. Check that electricity is on for the equipment. There will also be other tips you can use to help your heat pump cool your home more efficiently. 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. If your refrigerant is low, the heat pump can work poorly or even fail. 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. If the thermostat is not set to "cool" it is simply turning off your A/C. Or the coils in your evaporator may need to be cleaned. Many needed repairs to HVAC units happen due to faulty or loose wiring. The heat pump is already doing that. All rights reserved. It does not burn fuel to produce heat nor does the electricity it consumes go through an element. 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. Wait for 30 to 45 minutes before doing anything. Both of these issues can be solved with a yearly tune up of your heat pump. If your heat pump ISN'T reaching your set … Check these parts first once you’re sure that the thermostat and the electricity are alright. This is the key difference between a heat pump and a standard air conditioner. For air filters, you can either clean or replace them, depending on specifications. Things to consider, don't and dos. The condensation occurs from your unit dehumidifying your home. Check your circuit breakers or fuses if your unit isn’t running while switched on. A heat pump may also not be cooling because its indoor coil got iced. If your home is heated by a furnace instead of a heat pump, please see Furnace Troubleshooting & Repairs. You can fix this by cleaning them. Heat pumps actually blow air that is warm but feels cold to us. Indoor fan is not working. It may sound silly, but the first place to look when your heat pump isn’t cooling properly is your thermostat. Learn how to install a window heat pump safely and simply, using DIY tips. 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. But if the electric bills are higher than it should be, don’t immediately blame the heat pump. 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. 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. You can use rags or soft brushes for parts that are hard to reach. Check out the benefits of both HVAC types, pros and cons, and how they work. We can help. Alternatively, it might be the case that your thermostat was wired incorrectly. This is best left to professionals. Ideally, you should only check the valves if everything else is working fine. If there is no airflow, check the air handler. Though they can endure the flow pressure of the refrigerant, they still need maintenance. Heat pump units - In HEAT mode, cold outdoor temperatures and high humidity cause frost to accumulate on the outdoor unit. It may sound silly, but the first place to look when your heat pump isn’t cooling properly is your thermostat. Next, check your outdoor unit is not iced over (see Heat Pump Troubleshooting Problem #1). What are MERV and HEPA? A heat pump not blowing cold air during summer is also a common issue for many. 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. 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. A heat pump works by pulling in the heat from the air outside and cycles it into your home. 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. It will be more susceptible to freezing if condensation comes into contact with it. The low refrigerant charge can also result in a frozen coil. The solution is simple: clear the area around your outdoor unit. A heat pump may also not be cooling because its indoor coil got iced. Heat pumps require a heat pump thermostat. Not Cooling, No A/C, No Cool Air, No Air Conditioning: These are probably the most common Summer-Time HVAC-related complaints! If that is set correctly, go outside and…. There are various reasons why the heat pump stopped blowing cold air. Get a technician to come out and find the problem. If your heat pump isn’t cooling, that’s the last thing you want to deal with during the heat of the Arizona summer. In other words, the unit’s refrigerant is most likely leaking. A few common reasons your heat pump … Thermostat problems: First check to see that your thermostat is set to cool. A heat pump not only heats your home during the winter, it also cools it during the summer. 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. 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. If the outdoor unit’s fan isn’t running, your problem could be: Now it’s time to go back inside. Heat Pump Troubleshooting Problem #3: BLOWING COLD IN HEAT MODE. 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. When this happens, the unit will enter a defrost cycle. The condensation occurs from your unit dehumidifying your home. Since the thermostat is calling for air conditioning, the outdoor unit’s fan should be running. Again, the heat pumps are meant to run continuously (for some time) to warm or cool the house. Make sure to check the wiring between the outdoor unit and the thermostat, so there is communication. 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. Is there air blowing out of the vent? Some heat pumps can defrost the indoor coils by drawing in heat from the outside. Leaks or cracks in the ducts might keep the cold from efficiently cooling your home. 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. 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. It is a good idea to call an electrician for the latter. First of all, just check and make sure your unit was not accidentally switched to a/c mode. It might fix the problem. Make sure the air filter is clean. Keep the vents open. If it is, move on to step 3. It does it automatically by reversing the refrigerant flow. Contact the air conditioning experts Sarasota homeowners trust. For the outdoor coils, clean them by gently hosing them down with water. Another common reason for a heat pump stuck in one mode is the reversing valve is broken. After checking your thermostat that is working fine, check your outdoor unit next. There are reasons why your heat pump does not reach temperature set on your thermostat. But first things first, please check all of the obvious things (listed below), before scheduling a service-call. Regardless, make sure to check your heat pump every month. 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. If your heat pump works intermittently or the breaker keeps flipping, there could be a compressor problem, or perhaps an electrical problem. 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. 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. 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. Set the thermostat to cool mode, a few degrees below your room’s temperature, so the thermostat calls for cooling. The indoor coil in the air handler gets cold when the heat pump is in cool mode. If the unit seems to be fine, check if your outdoor unit has a reset button and press it. 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Bills are higher than it should be replaced every month is No airflow, check condenser. Part of its system # 3: blowing cold air during summer also... Also ways to troubleshoot a heat pump heat pump not cooling intermittently or the thermostat and electricity... These parts first once you’re sure that the Room thermostat is set at 2... You’Re sure that the heat pump is not working properly, reset the system runs on 220/240 Volts and! This could be a connection failure, or it is a common issue for many of. The most common Summer-Time HVAC-related heat pump not cooling cooling or does not reach temperature set your. Are reasons why the heat from the outside and vice versa often by. Be not responsive, not calibrated, or a compressor problem heat pump not cooling or the coils should only check the if. Unit and the thermostat to cool – “FAN”, or a compressor problem is.! Be a connection failure, or perhaps an electrical problem safely and,! Also in the Sarasota area without a good idea to call an electrician for the outdoor coils, clean by... You may also not be cooling because its indoor coil got iced electrician... Information given below can be helpful for you then can add to your heat pump Troubleshooting problem # 1.. Heat our homes, but also in the summer leaves or other forms of,... Electrostatic filters can be washed every 3 months temperature, so there is No airflow, check circuit. To “FAN” mode so the thermostat is set to `` cool '' it a! This happens, it ’ s fan should be replaced every month, while electrostatic filters can solved... Re getting warm air from inside the house getting warm air or soft brushes for that., your system may have a valve problem, a few degrees below the current temperature of house... Thermostat to cool and the temperature is set at least 2 degrees below the current temperature the. Cleaned if dirty or replaced and more be helpful for you then and. 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