During the hot summer days or an uncomfortable humid day, there is nothing worse than your AC blowing hot air. It does not take an expert to know that when your air conditioning unit blows hot air, there is something wrong with it. But finding out why the air conditioner is blowing hot air is very tricky. Some reasons for AC blowing hot air are easy fixes, but others need professional fixes. 

If you are curious why your AC is blowing hot air, and if it is something you can diagnose and fix on your own, read on. Hot air blowing from your air conditioner can be caused by numerous reasons. Each one of them has different signs that you need to look out for. While some of these problems are simple fixes, others will need an AC repair Dothan professional. 

7 Reasons Why Your AC is Blowing Warm/Hot Air

#1 The Thermostat is Set on the Wrong Temperature

One of the most common problems with AC blowing warm air is as simple as the thermostat not being set at the right temperature. Maybe someone tampered with the AC unit or accidentally changed the settings to “heat.” If this is the case, all you need to do is change the setting back to “cool” and check if the AC starts to blow cool air again.

#2 The AC Filter is Clogged

Your AC system depends on a return filter to remove the dust and dirt particles from the air before circulating through the unit. The filters are the unit’s first line of defense. When these filters are compromised, they can restrict proper airflow and can stop your AC from cooling the air. Cleaning or replacing the dirty filters can prevent malfunctioning of the AC parts, which may cause them to blow hot air. 

#3 The Condenser Coils Are Blocked or Dirty

The condenser coils are essential for the proper functioning of your AC. They lead hot air outside of the house. However, due to their position outside the house, they can get coated with leaves, trash grime, and debris. When the coils get clogged, they can no longer cool air, and the AC starts to blow hot air. Thus, it is important to clean the condenser coils to avoid this problem. 

#4 The Outdoor Unit May Have Lost Power

Your AC unit is made of an indoor unit and an outdoor one. If your AC is blowing hot air into your house, your indoor unit may be working, but the outdoor unit (which is responsible for cooling the air down) may have lost power. The problem may be due to a blown fuse or a tripped circuit breaker. If you notice that the circuit is not providing power to your outdoor unit, you have found the issue. It is best to call a professional to get your AC back up as quickly as possible. 

#5 Low Refrigerant Levels

Another common reason for an AC to blow warm air is due to low levels of refrigerant. Refrigerant is critical for any AC unit to run correctly. It absorbs heat and humidity from the air, which is what leaves the air feeling cold. If there is a leak, the refrigerant may need to be replaced. This problem will require the assistance of a knowledgeable professional. 

#6 Evaporator Coils Are Frozen

If the evaporator coils are dirty and coated in dust and debris, it will cause the coil to freeze and cause the system to function improperly. To solve the issue, you need to turn off the power of the unit, clean the drain, and allow the evaporator coils to defrost before turning the power back on.

#7 Malfunctioning Compressor

If the thermostat is set to the right settings, but the AC is still blowing hot air, it may be because the compressor is malfunctioning. If the compressor is not working correctly, the refrigerant in the AC will also not be able to cool down the air. So, it is important to check if the compressor is working fine, and if it is not, it’s best to call a professional to help fix the problem.

AC Repair in Dothan By Industry Professionals

If your AC is blowing warm or hot air when switched on, you should trust Long Total Comfort. Our knowledgeable and professional team can help diagnose the problem and fix it efficiently the very first time. As one of the top-rated AC repair companies in Dothan, Alabama, we understand the importance of quality customer service. We constantly aim to provide the highest level of service across Dothan and nearby areas.