compressor not shutting off when full.

Hey guys I was wondering what might be causing my compressor not to stop when its charged, it charges up and then the safety valve will release a short burst of air and then it will continue charging.

Sounds like a bad pressure switch. Or mis wired. Is it a new or old install? Is your pressure switch mounted in the bottom of your tank?

Welcome to the forum.
I agree and check for a stuck power solenoid too.