Craftsman compressor blowing breaker
My craftsmen air compressor will not reach cut in pressures before blowing breaker, I have added a 20 amp breaker to house, same result,
I install a new pressure switch with integral unloader valve, same result, it builds to approx. 105 psi then blows,
I can drain tank of air and kick in and it starts fine and builds again to 105 and blows the breaker,
I have checked the start cap and it tested OK,
I'm now installing another new pressure switch thinking that maybe I had got a defected one, I'm totally lost on this one, what could the problem be, help.
My compressor is a 2 horse model 1 horse motor, 2 stage pump