Air conditioner not blowing cold air but running

Jun 13, 2023 · If your AC is in a window that gets direct sunlight in the heat of the day, it will have to work harder to cool your space. If you have a choice, move it to a shadier spot. If you don’t, keep ... Sep 17, 2019 ... Check the Thermostat Fan Setting ... Is your air conditioner blowing cold sometimes but warm at other times? If so, make sure your fan is set to “ ...1. Improperly Set Thermostat. Whether you use a smart thermostat or a basic thermostat, your air conditioner's cooling issues could solely be a result of an improperly set thermostat. Adjust your thermostat to run the AC at your desired temperature. Switch the fan setting to "On" to check that the fan is working.Common Causes of Air Conditioner Malfunctions. If your air conditioner breaks down completely, there’s obviously a major issue that needs to be taken care of by a professional AC contractor. However, a slightly more …Here’s a good order to go about checking your vehicle’s air conditioning system: First, check the condenser to make sure it’s not blocked by any debris. Inspect the cabin air filter (if equipped) to verify that it is not clogged. Determine if the blend door is moving. Check the system pressure. If it’s low, you’ll need to charge it ...Jul 8, 2021 ... The air conditioner not blowing cold air but running can be the result of a filter not being cleaned. To avoid a home AC unit not blowing ... A very dirty filter could impede air flow so much that the fan runs but no cool air comes out of the vents. Maintaining the filters is the easiest thing you can do to improve the operation and lifespan of your air conditioning system. Tip: Ensure that the HVAC fan isn’t running when the filter is replaced. More About Ac Not Cooling But Fan Is Running • Why is my AC running but not blowing air?In a properly functioning air conditioner, the fan draws air over the cold evaporator coils then re-circulates the air back into the house. If the circulating fan isn’t running or running too slowly, little or no air will flow over the evaporator coils. This will, in turn, cause the evaporator coils to get too cold, and even ice will form on ...Jul 8, 2021 ... The air conditioner not blowing cold air but running can be the result of a filter not being cleaned. To avoid a home AC unit not blowing ...When the filters become clogged, air flow decreases and you’ll notice the AC running but not cooling to your selected temperature. Monitor the cleanliness of your filters. Most suggest being cleaned or changed every … If your AC is not blowing cold air or running correctly, it could mean you have one, or more, of the following issues: The outdoor cooling coil may be clogged or blocked. The indoor air handler coil could be blocked. The filters may be clogged or dirty. The thermostat controls may be set incorrectly. Faulty Compressor. A faulty compressor will not move the refrigerant through the system properly. Here are the four main reasons why your Ram’s may not be working: Clutch Cycling Switch – AC systems use an electromagnetic clutch to activate the compressor. When this switch fails, your air conditioning will only blow warm air.Jun 17, 2016 · 1. Clean Your Filter. First, turn off the power to your HVAC unit. Your filter will be located in the air handler cabinet, and will be easily accessible from the door on the front. Consider investing in a washable filter. Here are 10 common problems with PTAC units: PTAC unit not blowing hot/ cold air. Unit not turning on. Unit running continuously. Unit making a humming or buzzing noise. Inadequate pressure flowing in or out of the unit. AC unit leaking water inside your room. Push buttons not working correctly.Jan 2, 2024 · Check the AC mode setting. First, you’ll want to check that the air conditioner mode is set to the correct setting. Most portable air conditioners have three settings: “Cool”, “Dry”, and “Fan”. Ensure that your AC is set to “Cool” mode and see if it starts blowing cold. The “Mode” button on this portable AC is used to ... Jan 2, 2024 · Check the AC mode setting. First, you’ll want to check that the air conditioner mode is set to the correct setting. Most portable air conditioners have three settings: “Cool”, “Dry”, and “Fan”. Ensure that your AC is set to “Cool” mode and see if it starts blowing cold. The “Mode” button on this portable AC is used to ... Possible Solution (s): Remove the filers with care and gently clean them, removing any dust on the filters. If the AC fan blades are not able to rotate, the AC won’t be able to blow out air. Debris and a broken …If your AC is not blowing cold air in the house, there are several things you should do to resolve this issue. First, make sure that the thermostat setting is properly adjusted and set to cool mode. Then check the air filter and replace it if necessary, as an old or clogged filter can restrict airflow. Next, inspect both indoor and outdoor ...5 Reasons Your Air Conditioner is Blowing Hot Air. 1. Incorrectly Set Thermostat. If your AC suddenly blows hot air, you may have an incorrectly set thermostat. The thermostat may be out of power, accidentally set too high, set to heat, or not configured properly. If a thermostat is set to gas heating when you use electricity, it may sound like ...Jan 21, 2023 · Ice can form in your AC for many causes. First, clean your coils and filters to improve airflow. Run the air conditioner’s fan to melt the ice after cleaning the filters and coils. The AC may not blow cold air if refrigerant levels are low. 7. Electrical Errors. Electrical issues can prevent your AC from blowing chilly air. An air conditioner would need refrigerant to keep it running smoothly. The cold air blowing from your air conditioner is made possible by refrigerant lines, as they work to cool the room temperature air. Having a leak in the refrigerant lines means that the air conditioner can no longer properly cool the air, which results in warm air coming ...Jul 8, 2021 · As well as having an air conditioner not blowing cold air but running you might have an increase in dust in the room. 3) Ice Buildup. Ice buildup happens for two reasons. The filters are dirty or the coils are dirty. That leads to poor flow of air and poor aircon refrigerant so then you have your ac is on but not blowing cold air. If you are ... If warm air blows through your vents, your thermostat may be the issue. Try troubleshooting your unit and resetting the thermostat to your desired temperature. If your air conditioner (AC) is not blowing cold air or doesn’t blow air at all, check the batteries and ensure all wires are connected. If the problem remains, contact an HVAC ...Once you’ve figured out the root cause of your AC not blowing cold air, you may be able to fix it on your own. Resetting a thermostat or changing an air filter doesn’t take a brain …Here’s a good order to go about checking your vehicle’s air conditioning system: First, check the condenser to make sure it’s not blocked by any debris. Inspect the cabin air filter (if equipped) to verify that it is not clogged. Determine if the blend door is moving. Check the system pressure. If it’s low, you’ll need to charge it ...If your AC is not blowing cold air in the house, there are several things you should do to resolve this issue. First, make sure that the thermostat setting is properly adjusted and set to cool mode. Then check the air filter and replace it if necessary, as an old or clogged filter can restrict airflow. Next, inspect both indoor and outdoor ...1. Improperly Set Thermostat. Whether you use a smart thermostat or a basic thermostat, your air conditioner's cooling issues could solely be a result of an improperly set thermostat. Adjust your thermostat to run the AC at your desired temperature. Switch the fan setting to "On" to check that the fan is working.Thermostat Issue. The AC’s thermostat could have some problems, or you have drained its batteries. Hence, it won’t transport enough signals to the central air …Samsung Air Conditioner Not Blowing Cold Air. If your Samsung air conditioner is not blowing cold air, it has a dirty air filter, dirty condenser coils, refrigerant issues, high temperature settings, or the AC is undersized. A dirty filter is the most common and should be prevented by cleaning the filter every 2 weeks in the cooling season.Understanding the Dilemma: AC Running But Not Cooling. When your air conditioner is running but not cooling the air, it can be caused by various factors. Let’s delve into some of the most common reasons: 1. Thermostat Settings: If your air conditioner not blowing cold air but running, Before panicking, check your thermostat settings.Jul 29, 2023 · If your window air conditioner isn’t blowing cold air, there are a few possible reasons. The most common reason is that the unit is low on refrigerant. This can be caused by a leak in the unit or by improper installation. Another possibility is that the evaporator coils are frozen, which can be caused by too much humidity in the room or by a ... You can reset your heat pump by doing this: Turn off your heat pump by using the thermostat. Then switch it off by using the power switch. Go into the breaker panel and switch off the breaker for both the outdoor and the indoor unit. Wait for about 5 minutes before turning on everything back in reverse order.Common Causes of Air Conditioner Malfunctions. If your air conditioner breaks down completely, there’s obviously a major issue that needs to be taken care of by a professional AC contractor. However, a slightly more …Clogged air filters could also be a cause of evaporator coils freezing up! 2. Evaporator coils. After you take the filter down, the evaporator coils should be exposed. If you can reach them, they can be cleaned gently with a brush. You can also access the coils from the top of …Schedule an Appointment and Stay Cool All Summer Long. If your A/C is not blowing cold air, contact our licensed Chicago HVAC technicians. They can help troubleshoot the problem so you can cool down and relax again. Contact us …Thermostat Issue. The AC’s thermostat could have some problems, or you have drained its batteries. Hence, it won’t transport enough signals to the central air …Your heat pump operates just like a central air conditioner with the added benefit of providing heat for your home during the winter season. Some of the common issues covered in this heat pump troubleshooting guide include: Blowing cold air in heat mode; Heat pump running constantly in moderate weather; Outdoor unit is blocked; Outdoor unit is ...Your air conditioner may be running but not cooling your house because: Your air filters are dirty. Your condenser coil is clogged. Your evaporator coil is ...Aug 7, 2023 · Air conditioner not blowing cold air but running. If your air conditioner isn’t blowing cold air, there are a few potential causes. First, check to make sure that the unit is properly charged with refrigerant. If it’s low, the unit won’t be able to produce cold air. Second, check the air filter and make sure it’s clean. If your fan is running all day, it eventually starts to feel like cold air is blowing, whether or not you have the heat on. You can check the fan mode by going to Ecobee’s Comfort Settings. Go to Main Menu > Comfort Settings. From here, you have the option to set the fan to “Auto” or “On” in both heat and cool mode. If the AC continues to run but not blow cold air, call an HVAC expert for help. Frozen evaporator coil. The evaporator coil is located in the outdoor unit of your HVAC system. It’s responsible for absorbing the heat energy from the warm air inside your home. It then works with the condenser coil to cool the air and return it to your space. Check the thermostat If you have HVAC running but not cooling, the first step is to check your thermostat. First things first, make sure this device is set to cool. If it …Jul 8, 2021 ... The air conditioner not blowing cold air but running can be the result of a filter not being cleaned. To avoid a home AC unit not blowing ...Let the engine run for at least 30 seconds. If your car is out in the open and it is covered in snow, remove the snow and let it run for almost a minute or so. Then step in and start it. Drive slow for the first 5 to15 minutes so that the engine has time to warm up properly.Conclusion: Volkswagen Beetle AC Not Blowing Cold. These are a few of the most common issues that could cause your Beetle not to blow cold enough. However, there are other issues that can cause this as well. Most of the time, when your Beetle’s air isn’t blowing cold enough, it is going to be a lack of refrigerant causing the problem.Diagnosing An RV Air Conditioner That Is Not Cooling – My RV Works, Inc. If your RV’s air conditioner isn’t blowing cold air, check the thermostat and the electrical system that powers it. The thermostat may be triggered to switch off the system by anything as simple as a loose cable or a low battery.1) Make sure the condenser fan setting is “auto” instead of “on.”. If it’s “on,” the ac system will blow air that hasn’t cooled. 2) Check the air filter. And if the air from the supply vents is not cool or weak, examine if the air …3. Inspect The Compressor And Fan. In the case the capacitors seem to be working fine, it’s time to take a look at the air conditioner compressor and the fan. A fan malfunction would mean there is little to no air (A/C unit running but no air through vents). In the other hand, a compressor malfunction would inevitably cause hot air to come ...If your fan is running all day, it eventually starts to feel like cold air is blowing, whether or not you have the heat on. You can check the fan mode by going to Ecobee’s Comfort Settings. Go to Main Menu > Comfort Settings. From here, you have the option to set the fan to “Auto” or “On” in both heat and cool mode.Table of Contents. Portable air conditioner not blowing cold air but running- how to fix a portable air conditioner that is not blowing cooling. 1. Check the settings. A word on the mode setting. About the temperature setting. 2. Check the fan. 3.May 18, 2023 · 4. The refrigeration cycle is disrupted, and air is not cold. Another reason why your central air conditioner is not blowing cold air is that the refrigeration cycle has been disrupted. This can occur when electrical components fail, the machine is running low on refrigerant, the coils are frozen over, or the components are dirty, says Anthony ... The most common causes of your air conditioner not providing cool air are a dirty air filter and a damaged condenser coil. To fix it, try cleaning the air filter. If that doesn’t help, clean and inspect the condenser coil on the exterior of the unit. If damaged, it may need to be replaced. If the fins are just bent, use a fin comb to ...1. Air Conditioner Not Cooling?: Common Causes and Solutions Air Conditioner Won’t Blow Cold Air. If your AC system turns on but doesn’t blow out cold air, ensure all the vents are open and the thermostat is set properly. If these aren’t the problem, check the air filter. If it’s clogged with dirt or other debris, you won’t get any ...The main condenser-related issue that leaves your car AC not blowing cold air is a change in its physical structure. The condenser placed at the aft end of the vehicle gets blocked or even damaged by debris from the road. It can also get itself blocked due to dirt buildup, especially after a drive-through slush.Your air conditioner may be running but not cooling your house because: Your air filters are dirty. Your condenser coil is clogged. Your evaporator coil is ...1. Power Fluctuations. Electrical surges and power fluctuations may cause disruptions to the electrical circuit powering your AC unit. A power surge might have blown a fuse or caused the breaker to trip. So, try resetting the breaker and then switch on the air conditioner to check if the problem is solved. 2.Here’s a good order to go about checking your vehicle’s air conditioning system: First, check the condenser to make sure it’s not blocked by any debris. Inspect the cabin air filter (if equipped) to verify that it is not clogged. Determine if the blend door is moving. Check the system pressure. If it’s low, you’ll need to charge it ...Jul 6, 2018 ... If your AC is failing to blow out cold air, you may need to change your air filter. Air filters are a central part of your HVAC unit. All of the ...Here are 10 common problems with PTAC units: PTAC unit not blowing hot/ cold air. Unit not turning on. Unit running continuously. Unit making a humming or buzzing noise. Inadequate pressure flowing in or out of the unit. AC unit leaking water inside your room. Push buttons not working correctly.A/C Not Blowing Cold Air But Running. you may be asking why is my air conditioner not cool house. It may be the capacitor. The capacitor is the reason my ac ...If your fan is running all day, it eventually starts to feel like cold air is blowing, whether or not you have the heat on. You can check the fan mode by going to Ecobee’s Comfort Settings. Go to Main Menu > Comfort Settings. From here, you have the option to set the fan to “Auto” or “On” in both heat and cool mode.Jun 30, 2020 ... If you find that your air conditioner is on and appears to be working, but no cold air is coming out, this could indicate a problem with ...Possible Solution (s): Remove the filers with care and gently clean them, removing any dust on the filters. If the AC fan blades are not able to rotate, the AC won’t be able to blow out air. Debris and a broken …Ac Not Blowing Cold Air Reset. If your air conditioner isn’t blowing cold air, you may need to reset the unit. Resetting the AC involves cutting off power for at least 30 seconds and then turning it back on. This gives the internal components a chance to reset themselves and can often fix basic issues with an AC not blowing cold air.The most common cause of a heater blowing cold air is a bad thermostat. The thermostat opens and closes to regulate coolant flow. A thermostat typically opens when the coolant temp...The internal mechanics have failed. If your central air conditioning unit is …If your AC unit is clean and seems to be running normally but it isn't blowing cold air, chances are you've chosen the wrong mode in the control panel. When you select ‌ Fan ‌, the compressor won't cycle on, and the unit will blow air directly from outside. If your unit has a ‌ Dehumidify ‌ function and you select it, the fan will blow ... See if your system is set to ON (fan mode). If it is, this might be your problem. Try switching the setting to AUTO. This easy fix will ensure your AC fan is only blowing cooled air into your home. Some thermostats require batteries to work properly, so it might be time to replace them. Easy-peasy. Tape a thermometer inside the supply duct, wait for about 10 minutes, and record the temperature. Do the same with the return duct. Calculate the difference between the temperatures – it should be at least 20 degrees. If it’s not, then your unit is not blowing cold air and there is something wrong with the system.If your air conditioner is not blowing cold air but running, you may have a dirty condenser. You can check to see how dirty the condenser is. To do this, follow the …Nov 13, 2023 · Also read>>>>Ac Running But Not Cooling. Why AC not Blowing Cold Air but Running. 1.Thermostat Issues. When your AC not Blowing Cold Air but Running, one of the initial culprits to investigate is the thermostat. There are a few potential problems related to the thermostat: A window AC unit consists of a refrigeration system similar to the one in a refrigerator, one squirrel-cage blower that circulates cold air into the room, and a bladed fan that blows hot air out the rear of the unit. The refrigeration system has four main components: a compressor, a condenser coil, an evaporator coil, and an expansion …Step 1: Check for refrigerant leaks and low refrigerant levels. Refrigerant leaks are a common culprit behind a hissing and non-cold car air conditioner. To detect leaks, inspect the AC system components, such as hoses, connections, and the condenser. Look for signs of oil stains or refrigerant residue.3. Dirty or Clogged Filter. If your air filter is dirty, it can reduce airflow, pressure, and heat transfer, limiting your air conditioner’s efficiency. It can cause the air conditioner to work harder, which can increase energy costs and cause wear. Air filters become dirty from everyday living and could need changing every three months, …Table of Contents. Portable air conditioner not blowing cold air but running- how to fix a portable air conditioner that is not blowing cooling. 1. Check the settings. A word on the mode setting. About the temperature setting. 2. Check the fan. 3. Table of Contents. Portable air conditioner not blowing cold air but running- how to fix a portable air conditioner that is not blowing cooling. 1. Check the settings. A word on the mode setting. About the temperature setting. 2. Check the fan. 3. Power issues create the most likely scenario for your air conditioner not turning on. If you notice that the circuit breaker needs resetting, you can reset it and try to turn on the system again. Regular tripping may indicate other problems in the system, such as dirty air filters, faulty connections, or a failing capacitor. 9.When it comes to your air conditioner, there are a few common reasons why it may not be blowing cold air. These include a frozen evaporator coil, a refrigerant line leak, dirty condenser coils, and a condenser fan that isn’t spinning. If you’re having trouble with your air conditioner, make sure to check for these common issues first.If your air conditioner isn’t working as it should contact your local air conditioning experts at Advanced Climate Solutions. Whether your air conditioner is leaking refrigerant or simply needs a filter change, ACS offers quality air conditioner repairs, maintenance, and installations at a great price! Call us today on 0403 254 272 or fill ...Table of Contents. Portable air conditioner not blowing cold air but running- how to fix a portable air conditioner that is not blowing cooling. 1. Check the settings. A word on the mode setting. About the temperature setting. 2. Check the fan. 3.5 Reasons for Air Conditioner Not Blowing Cold Air 1.Thermostat Settings. The thermostat settings are one of the most frequent causes of your ac not blowing cold air. Your air conditioner’s thermostat is its control panel, and if it’s not set properly, it could result in pain and ineffective cooling.Jan 26, 2023 · First, ensure the thermostat switch is set to “heat” and not “cool.”. Next, make sure the fan switch is set to “auto.”. The “on” setting causes the fan to run constantly, and unheated air will blow from the vents between heating cycles. The fan will only run during heating cycles when it’s set to “auto.”. If the settings ... 5. Amana Air Conditioner Not Heating (Not Blowing Warm Air) The reverse of the above issue could happen. I’m talking about your air conditioner failing to blow warm air. In such a case, the likely causes are as follows: Wrongly set thermostat – The air conditioner won’t blow warm air if it’s in COOL mode. It’ll instead blow cold air. Table of Contents. Portable air conditioner not blowing cold air but running- how to fix a portable air conditioner that is not blowing cooling. 1. Check the settings. A word on the mode setting. About the temperature setting. 2. Check the fan. 3. Table of Contents. Portable air conditioner not blowing cold air but running- how to fix a portable air conditioner that is not blowing cooling. 1. Check the settings. A word on the mode setting. About the temperature setting. 2. Check the fan. 3. If your window air conditioner is working but not cooling at all or not as good as it used to, you may be able to fix it easy. In this video I show how to ta...The internal mechanics have failed. If your central air conditioning unit is …Friedrich Air Conditioner Not Blowing Air. If your Friedrich air conditioner is not blowing air, it has a dirty air filter or condenser coils, blocked return air ducts, a high thermostat set point, it’s undersized, or the AC has entered the defrosting mode in the heating season. A dirty filter is most common and should be cleaned regularly.6 Common Causes Of Air Conditioner Blowing Hot Air. #1 Low Refrigerant Levels Are The Cause Of AC Blowing Warm Air. #2 Faulty Compressor Leading To AC Blowing Hot Air. #3 Clogged Filters (Not Dirty) Can Cause AC To Start Blowing Warm Air. #4 Clogged Expansion Valve Causes Hot Air Coming From AC.Mar 17, 2022 · If your thermostat is set at a higher threshold, it might not actually be turning on. For example, if it’s 24°C, and your air conditioner temperature setting is 28°C. Also, another reason why your AC isn’t cooling to set temp is if it’s on the ‘Auto’ setting instead of ‘On’. At this point, you’ll have to do a little investigating. To troubleshoot this issue, turn off the AC for 24 hours and set the fan to On or Fan Only to run warm air over the coils. (The initial ice build-up is often caused by …The most common cause of a heater blowing cold air is a bad thermostat. The thermostat opens and closes to regulate coolant flow. A thermostat typically opens when the coolant temp...2. Why Is My Hisense Portable Ac Not Blowing Cold? Your Hisense portable AC won’t blow cold because of a high thermostat setting (higher than the room temperature), the wrong thermostat mode, or a malfunctioning thermostat. It could also be due to blocked airflow – related to a dirty air filter, obstructed vent, or iced evaporator coils.If it's blocked by debris, damaged, or the airflow is obstructed, it can't properly dissipate heat, and the system can't cool the refrigerant, which means the air blown into your car …1. Clean The Air Filter. If your window air conditioner is not blowing cold air, it may be because the air filter is dirty. The air filter is an important component of your air conditioner as it traps dust, dirt, and other particles from the air. Over time, the filter can become clogged, limiting the airflow and reducing the cooling efficiency ...If it is jammed the AC unit will not work. You may have to clean the fans as well. While cleaning, look for any obstructions that are hindering their working at normal levels. Finally, check the compressor to see if it is dirty. If so, a good cleaning should get it up and running and the cool air flowing again.Once you’ve figured out the root cause of your AC not blowing cold air, you may be able to fix it on your own. Resetting a thermostat or changing an air filter doesn’t take a brain …Your heat pump operates just like a central air conditioner with the added benefit of providing heat for your home during the winter season. Some of the common issues covered in this heat pump troubleshooting guide include: Blowing cold air in heat mode; Heat pump running constantly in moderate weather; Outdoor unit is blocked; Outdoor unit is ...Conclusion. In conclusion, it is important to remember that if your AC fan is blowing but not cooling, there are a few potential causes. From simple maintenance issues such as clogged air filters or evaporator coils to complex electrical problems like faulty capacitors and motors, the best way to identify the cause of this issue is by having an …Jun 24, 2015 ... If your air conditioner will turn on, and your thermostat is set properly, but your system is not cooling you may have a dirty or blocked air ...Jun 17, 2016 · 1. Clean Your Filter. First, turn off the power to your HVAC unit. Your filter will be located in the air handler cabinet, and will be easily accessible from the door on the front. Consider investing in a washable filter. Table of Contents. Portable air conditioner not blowing cold air but running- how to fix a portable air conditioner that is not blowing cooling. 1. Check the settings. A word on the mode setting. About the temperature setting. 2. Check the fan. 3. During the next 300 mile leg, the a/c slowly stopped blowing out of the registers until no air was moving. You could hear the blower running at every speed selected. Stopped for a few minutes (< 15). Everything worked fine when I restarted the car. No problems for the next 2 hours of the drive.According to HVAC professionals, there are many reasons why an air conditioner might run continuously, including frozen coils, inadequate airflow, and high outside temperatures. Co...Aug 7, 2023 · Air conditioner not blowing cold air but running. If your air conditioner isn’t blowing cold air, there are a few potential causes. First, check to make sure that the unit is properly charged with refrigerant. If it’s low, the unit won’t be able to produce cold air. Second, check the air filter and make sure it’s clean. Conclusion. In conclusion, it is important to remember that if your AC fan is blowing but not cooling, there are a few potential causes. From simple maintenance issues such as clogged air filters or evaporator coils to complex electrical problems like faulty capacitors and motors, the best way to identify the cause of this issue is by having an …Apr 4, 2023 · The expert will check your thermostat and either repair or replace the thermostat to get your cooling unit working properly again. 3. Dirty Filters. The other reason why your AC system is not blowing cold air is a dirty filter. AC filters trap dirt, dust, and other pollutants circulating in your indoor air. Feb 8, 2023 ... Why Is My AC Running but Not Cooling? · Dirty air filter – · Low refrigerant levels – · A malfunctioning thermostat – · Clogged condense...Faulty Compressor. A faulty compressor will not move the refrigerant through the system properly. Here are the four main reasons why your Tahoe’s may not be working: Clutch Cycling Switch – AC systems use an electromagnetic clutch to activate the compressor. When this switch fails, your air conditioning will only blow warm air. | Chlttszcduft (article) | Mvrbmh.