Q:

How do you diagnose air conditioning problems?

A:

Quick Answer

Homeowners can diagnose and troubleshoot air conditioning problems by turning off the unit, cleaning the filter and condenser coils, inspecting the fuses and inspecting the start/run capacitors and contactor, states Family Handyman. If the troubleshooting tips do not solve the issue, homeowners should contact a professional.

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Full Answer

To diagnose air conditioning problems:

  1. Clean
  2. When diagnosing and troubleshooting air conditioning problems, start by turning the power off, opening all of the registers and thoroughly cleaning the filter and condenser coils, notes Family Handyman. De-ice the A-coil if it has ice, and then turn the air conditioning unit off and the fan on for half an hour. After running the fan only, turn the air conditioning unit back on to see if this solves the problem.

  3. Inspect the fuses
  4. If cleaning does not solve the problem, use a multimeter to test the fuses in the disconnect block. Replace the blown fuses; if they burn out again, a more serious issue exists and homeowners should contact a professional.

  5. Inspect the access panel
  6. Inspect the start/run capacitors and contactor and follow the instructions to replace these components if necessary.

  7. Contact a professional
  8. If replacing these elements does not solve the problem, contact a professional to diagnose and troubleshoot the air conditioning unit.

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