What Can Cause an Air Conditioner to Stop Working?

Staying home with an air conditioner that has stopped working during a hot summer is nothing short of a nightmare. There are hundreds of reasons why your AC isn’t working as it is supposed to and the best way to avoid these problems is by scheduling regular maintenance for your AC unit by a professional.

Read below and learn about the top seven causes of air conditioner problems that can cause your AC unit to stop working.

Thermostat Problems

Using an old dial thermostat can be calibrated incorrectly and interrupt your cooling by stopping your Ac from working. To fix this problem, recalibrate the thermostat or replace it with a new programmable one. So if your AC has stopped working, the first thing to do is check and ensure the thermostat is set correctly. If you see your thermostat blank, try changing the batteries. 

Leaking Ducts

The ductwork carries the cool air from your AC throughout your home. But if any holes or breaks are present in the ducts caused by rodents or anything else, the cool air can get lost inside the walls. It will make your AC work harder, increasing the energy bills. 

Clogged Drains

Your air conditioner removes moisture from the air, which goes out through a drain line. If this line gets clogged, the water will have nowhere to go and be stored in the system, causing damage. It will also lead to water leaks damaging the walls, ceilings, and mold growth. 

Fan Issues

One fan blows indoor air over the unit’s evaporator coil, while the other blows air over the outdoor unit’s condenser to transfer the absorbed heat outside your home. If anything happens and any of the fans malfunctions, you will get poor airflow and many AC related problems. If left unnoticed, it can also lead to a compressor failure. 

Low Refrigerant

The AC uses refrigerant to remove heat and humidity from the air inside your home. But if there is any leak in the refrigerant lines, you will not be left with enough refrigerant to cool the air. You will need a professional to get an AC repair in Sidney, OH.

Dirty Condenser Coils

The condenser coils are part of your outdoor AC unit. These coils remove the heat from the air by throwing it outside your home. But these coils won’t be able to work if there is a layer of dirt and debris present. Your cooling system will have to work hard, leading to worn-out parts or, even worse, a system failure. 

Frozen Evaporator Coils

Refrigerant is filled in the evaporator coils. These coils absorb heat from the air and need warm air to work properly. But if something restricts the airflow, the evaporator coils can become too cold and get frozen up. When this happens, your AC will blow warm air or nothing. 


If you are facing any problem with your air conditioner and professional help is what you seek, then we at Burkett’s Heating & Cooling are the ones you need to call. You don’t need to go anywhere with our expert technicians, honest services, and a wide range of services from AC repair to AC installation in Piqua, OH.