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Air Conditioners | 5 Min.

Air Conditioner is Making Clicking Noises. What to Do?

Written by Chris

A peaceful summer with a silently working window air conditioner feels like pure bliss. Noises caused by window air conditioners are not only distracting but can indicate serious problems. There are a few reasons why your window air conditioner makes clicking noises. We will cover them all and provide troubleshooting tips as well.

Reasons Why Your Window Air Conditioner Making Clicking Noises?

Dirty filters

One of the common causes of the clicking sound of the window air conditioner is the settled dirt and debris on the blower motor. An imbalance of dust on one side of the motor causes a commotion as the fan moves.

How to fix the problem:

How to prevent it:

Ensure cleaning of filters regularly (quarterly, monthly, etc., depending on the use)

Make replacements if necessary

Compressor failure

The sound of compressor failure is accompanied by vibrations occasionally. The unsecured bolts or the flexible refrigerant tubing cause the compressor to fail and make clicking sounds.

How to fix the problem:

How to prevent the problem:

Loose screws

Your window air conditioner might make a clicking noise due to loosened screws caused by normal wear and tear.

How to fix the problem:

How to prevent it:

Capacitor issues

A capacitor is a tiny cylindrical component that helps the compressor in the air conditioner turn on. In the event of a faulty capacitor, the air conditioner may frequently turn on and off. The reasons behind capacitor issues could be a defective control board, circuit breaker, or capacitor itself.

How to fix the problem:

How to prevent the problem: