The fan does not turn on my borther in law says it is the circuit board because it will turn on for a little bit he said it is getting stuck. How do I find out what is really wrong with my a/c without paying a lot of money. When I got home yesterday my husband went up the roof and said the fan was not running and then he hit it for a little bit and said it turned on. So can you tell me what is wrong with my a/c unit
