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Blog Title: How to test a capacitor of an air conditioner?

Main Que: How to test a capacitor of an air conditioner?

  • Category:
  • Query By: Jonathan Baker (Plano, TX)
  • Date: 09/03/2016

Answer: If you want to test the capacitor yourself, do so by turning off the air conditioner. Remember, capacitors can store an electric charge (like a battery). Discharge the capacitor by shorting between capacitor terminals with a screwdriver. Now remove the wires from the terminals. Set the multimeter meter to read above 10k and 1m ohms. Connect the leads of the multimeter to the corresponding leads on the capacitor, red to positive and black to negative. The meter should start at zero and then moving slowly toward infinity. If it is doing so it is fine. Otherwise it is faulty and needs to be replaced.

  • Replied By: Eric Sadler (Chandler, AZ)
  • Replied Date: 09/06/2016