What Causes Home AC Failure?

There are many potential causes for home air conditioning failure, from simple issues like a dirty filter to more complex problems like a refrigerant leak. In some cases, AC failure can even be caused by something as seemingly innocuous as a loose wire. To help you troubleshoot and fix your broken air conditioner, here is a list of the most common causes of AC failure.

Lack of maintenance

One of the most common causes is due to lack of maintenance. When you don’t regularly clean and maintain your AC unit, it can cause a build-up of dirt and debris that can eventually lead to a failure.

Dirty or clogged filters

One of the most common causes of air conditioning failure is a dirty filter. When the filter becomes clogged with dirt and dust, it restricts airflow and can cause the unit to overheat. To clean or replace the filter, follow the instructions in your owner’s manual.

Thermostat problems

If your thermostat is not set properly, your AC unit may not cycle on when it should.

If your air conditioner is not turning on, it may be because the thermostat is set too high. To lower the thermostat, simply turn it to a lower setting and see if that fixes the problem.

Refrigerant leaks

Freon is a refrigerant that helps to cool the air inside your unit. Leaks in the refrigerant can cause your AC unit to lose its cooling power. To fix a refrigerant leak, you will need to take your air conditioner to a professional.

If your air conditioner is not cooling the air as well as it used to, it may be low on refrigerant. To recharge the unit, you will need to take it to a professional.

Compressor issues

The compressor is responsible for circulating refrigerant through your AC system. It is the heart of your AC unit and if it fails, your AC will not be able to cool your home effectively.

Electrical problems

Another possible cause of AC failure is an electrical issue. Loose wires or faulty electrical components can cause your AC unit to stop working.

Additionally, air conditioners can fail if they are not sized correctly for the space they are cooling. If an air conditioner is too small or too large for a space, it will not be able to effectively cool the area.

If you suspect that your AC unit has failed, it is important to contact a qualified HVAC technician for diagnosis and repair. Trying to repair an AC unit yourself can be dangerous and may void your warranty.