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5 Common Central Air Conditioner Problems

Central air conditioners are generally very reliable. When problems arise it’s usually the result of lack of maintenance or an aging unit that is reaching the end of its lifespan. Here are some things to check of your AC is not cooling.

  1. Low Refrigerant Levels
    An air conditioner that is running, but staying on too long and not cooling properly, may have a refrigerant leak or be insufficiently filled.
  2. Thermostat or Sensor Problems
    Check that the thermostat is set to “cool” and is set low enough to turn the unit on. Also ensure that the batteries are charged if the thermostat has batteries. If the unit does not turn on, check the circuit breaker to make sure it hasn’t tripped.
  3. Drainage Problems
    A damaged refrigerant line or broken fan can cause an air conditioner coil to freeze, casing the unit to malfunction. Also ensure that the drain pan is not backed up, by clearing the drain line if needed.
  4. Dirty Air Filter
    Air filters should be replaced monthly or as recommended by the manufacturer. A dirty filter will cause the air conditioner to run more frequently, reducing efficiency, wasting energy and shortening the lifespan of the unit.
  5. Leaking or Obstructed Air Ducts
    Air ducts are an often overlooked part of a home’s cooling system. Air duct cleaning and sealing can ensure that your system cools as efficiently as possible without wasting energy.

Have questions about your central air conditioner? Call ABC Southwest Plumbing & Air Conditioning. From annual AC maintenance and repairs, to new cooling system installation, we have you covered.

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