120 v compresser blows breaker right when turned on

by kevin koz
(wi)

blows breaker






Bill answers...

Hi Kevin:

I guess this has just started happening, and the compressor worked fine before?

Does it blow the breaker instantly, or does it take a second or a few seconds?

If the former, it's likely electrical, and my first guess would be the pressure switch is causing the problem.

If it tries to run for a period of time before popping the breaker, check that the unloader valve is working.

Cheers,

Bill

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