Step 4: Test the A/C. Test the A/C to see if it’s working. If it is, then you have successfully replaced the compressor relay.

Th A/C compressor relay is a small part that plays a big role, as with many parts in your car. Luckily, it is an easy fix if one goes bad, and hopefully replacing it will get your car’s system back to working condition. If your A/C is still not working, you should have your A/C system inspected by a trained professional.

This article originally appeared on YourMechanic.com as How to Replace an Air Conditioning Compressor Relay.


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