Hi and Welcome to Just Answer,
Ok, let's take a look at this;
If the fan and lights are working,
Sounds like your compressor relays may be failing this will allow the fan to work, but the compressor to stay off
Here is a link that will show you how to test the relay
Also here is a check list to check as well
Click on the links to see how to test them.
If you need more help Let me know
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