Q:

How do you know if your air conditioner's capacitor needs to be replaced?

A:

Quick Answer

The only way to know if the capacitor is causing problems is to test it, which requires using a multimeter or other tool. However, capacitors store a potentially dangerous amount of electricity, so it may be best to call an expert if capacitor problems are suspected.

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Full Answer

Air conditioners have one or more run capacitors. These capacitors are connected to the motors of fans and provide a consistent flow of electricity, ensuring efficient operation. If a fan stops working, a run capacitor may be to blame and should be tested before installing a new motor. Start capacitors provide a boost of power when the air conditioner is first turned on, but many air conditioners don't use them.

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