Basically my 15 year old Campbell Hausfeld air compressor crashed today. It was running just fine, it changed it's normal sound while running, and then started blowing my 20A garage circuit breaker. It's a 120V 15.0A 60HZ 1PH motor. It has the "oil less" type compressor made as part of the motor.

I replaced my old wall circuit breaker and it still does the same. I took the pump and the motor apart for inspection and nothing appears broken or burnt, and it all turns over freely. But it only runs for about tweny seconds before it blows the 20A circuit breaker. I really do not want to put a new $223.00 motor/compressor, plus freight into this old compressor.

Any ideas that I can check out? Thanks