How do you troubleshoot problems with your air conditioner?


Quick Answer

In order to troubleshoot a standard air conditioning system, the control unit should be inspected, as well as the breaker, outside fan, compressor and other main components. The refrigerant lines that run into the house should also be inspected to ensure there are no leaks in the system.

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Full Answer

The most basic causes of air conditioning failure are due to user error, such as poor maintenance, and can be easily reminded. Use the following instructions to properly troubleshoot a household air conditioning system.

  1. Check the thermostat
  2. First inspect the thermostat and compare the temperature inside of the house. If the air conditioner is set to 72 degrees and the house is 72 degrees, it will stop blowing cold. Adjust if necessary.

  3. If there is no power check the breaker
  4. The A/C system has a breaker that protects it from power surges. If the breaker flipped, the unit will turn off and be reset.

  5. Inspect the A/C blower
  6. Inspect the fan outside and listen for the blower, if neither are running then check the outside wire harness for frayed or burnt wires.

  7. Inspect the compressor
  8. See if the units compressor turns on with the fan. If it does not, the compressor should be replaced.

  9. Check the refrigerant level
  10. Air is cooled from the refrigerant in the system. Use a gauge to check the Freon in the system, also be sure to inspect the A/C lines for any leaks.

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