HVAC Contractor

Why Did My Air Conditioner Stop Working?


There are times when temperatures can reach extreme levels. You turn on your air conditioner to escape the heat but discover it is malfunctioning. You may question what is causing the issue and what you can do to fix it. Here are some of the most common reasons why your air conditioner may not be functioning properly and why you may require an AC repair.

Temperature Settings

The thermostat settings are one of the most common causes of AC repair calls. If “Auto” is selected instead of “On” on the thermostat, the air conditioner will not activate. To cool your home, ensure the switch is in the “On” position.

Additionally, verify that the thermostat is set to the appropriate temperature. The optimal setting is 78 degrees Fahrenheit. If it is set below that, the air conditioner will run continually and may not adequately chill the home. If it’s set too high, the air conditioner will cycle off too frequently and won’t be able to adequately cool the home.

Refrigerant Leaks

For your air conditioner to cool the air, it relies on refrigerant. If there is a leak in the system, the refrigerant will escape, and the air conditioner will not function properly. In rare instances, a refrigerant leak could be indicated by an oily deposit on the tube.

If you have a refrigerant leak, it is preferable to call a certified expert to fix the problem. Please do not attempt to fix anything since doing so could be hazardous.

Condenser Issues

The condenser is the component of an air conditioner responsible for cooling the refrigerant. If your AC condenser is unclean or obstructed, it will not function properly, and your air conditioner will have difficulty cooling your home.

You can clean the condenser by unplugging or turning off the unit’s power and removing any dirt and debris with a hose. However, if the coils are broken, they must be replaced. Again, this is a task best left to an AC repair expert with the proper qualifications.

Less Common Issues

Your air conditioner may also fail for less usual reasons, such as:

  • Evaporator Coil Problems
  • Fan Problems
  • Circuit Breaker or Fuse Issues

Evaporator coils aid in dehumidifying the air. If they are frozen, the air conditioner may not function properly. As the fan is responsible for moving air over the coils, problems with the fan may potentially cause your AC to fail. If it is not functioning properly, the air conditioner will be unable to cool your home.

Lastly, faults with the circuit breaker or fuse might also cause AC issues. When a circuit breaker is tripped, or a fuse blows, the unit loses power and ceases to function.

What to Do If Your AC Stops Working

If your air conditioner stops functioning, you can do a few troubleshooting steps. First, verify that the thermostat’s default settings are not preventing the air conditioner from cooling. Next, clean the condenser coils and eliminate any obstructions.

If you are unsure what is causing your air conditioner to stop working, the best course of action is to call a professional for assistance. Call Laney’s Inc. today for more AC tips or to arrange an AC repair in Fargo, ND. We look forward to always assisting you in keeping your home cool and comfortable!


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