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The Most Common Central Air Conditioner Problems

Air conditioner problems typically fall under three categories:

1. The Air Conditioner Isn’t Cooling Properly
When the unit is cooling properly the most common reasons are:

  • The refrigerant level is low or is leaking. A technician should repair the leak and recharge the unit
  • The Thermostat could be out of adjustment or is not located correctly in the room

2. The Air Conditioner Isn’t Turning On

  • First, check the circuit breaker to see it the unit’s electrical circuit has tripped and needs to be reset
  • If the air conditioner still won’t turn on it could be from electrical controls that run the fan and compressor have worn out and need replacement. Have an HVAC specialist inspect the unit

3. There Is Insufficient Airflow

  • The most likely cause is a dirty furnace air filter that is restricting airflow
  • The air ducts may be leaking or clogged. Air duct cleaning and duct sealing can dramatically improve airflow and cooling efficiency

Need help solving your central air conditioner problems? Call ABC Southwest Plumbing & Air Conditioning, we’re here to help.

For more air conditioner tips and advice, visit

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