5 Factors Why Your AC is Blowing Warm Air

Getting your AC ready for the heat of summer is ideal so you don’t have to live in uncomfortable conditions for any amount of time. Your AC unit blowing warm air is a cause for concern, but a residential HVAC maintenance professional can likely figure out the reason why pretty quickly. Here are five of the most common reasons why your AC is blowing warm air. Dirty Air Filters Or Blocked Air Vents It’s hard to remember to change out air filters routinely, but it’s important to do so. A dirty air filter can cause evaporator coils to freeze since the cool air can’t be spread around as much as it needs to. Air vents could be blocked as well and prevent proper airflow. So if your AC is blowing warm air, replace any dirty air filters and ensure no vents are blocked. If your evaporator coils froze as a result, then try turning off your AC for several hours to allow them to thaw before using again. Faulty Thermostat A faulty thermostat is another thing a residential HVAC maintenance professional will look at. Sometimes it’s as simple as forgetting to switch your thermostat from heat to cool. Other times it simply might not be working as it should. Call for HVAC services to have your thermostat replaced if you’ve changed the batteries and are still experiencing problems. Refrigerant Leak If you hear a hissing sound when your AC is blowing warm air, your first thought might be to call for HVAC emergency repair. Most of the time this is just a refrigerant leak and is the reason why your AC is blowing warm air. When this happens, just turn off the unit and call your residential HVAC maintenance professional to repair the leak and refill the refrigerant. Electrical Problems Electrical issues require the expertise of a licensed residential HVAC maintenance professional. Once you check your breakers and discover there are no issues there, then it’s best to contact a professional since electrical problems can be very hazardous to deal with. Frozen Evaporator Coils Or Dirty Condenser Coils Frozen evaporator coils can be caused by dirty air filters and could potentially damage your AC unit. Dirty condenser coils won’t freeze, but they can make the air coming from your AC unit warmer than it should be. You could clean them yourself by removing debris and cleaning the unit with a water hose. Or if you are uncertain, feel free to reach out to a professional. PRK Services, Inc. is here to ensure your AC is operating properly at all times. Don’t hesitate to contact us if your AC is blowing warm air and we will have the problem diagnosed and fixed in no time!