Question about Craftsman 3 gal. Air Compressor, 1.5 hp, Horizontal k

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Porter cable compressor will not restart once it is under pressur

Once my compressor reaches the cut off pressure and I use a tool with it, when it tries to restart to rebuild pressure, it will not start and blows the electric breaker. I need to know what part to replace. Is there a capasiter or another swith that helps it restart?

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This is likely a bad check valve which is allowing pressure from the tank to leak thru back to the compressor. The compressor won't start because the compressor cylinder has air pressure on it.

The check valve is about the size and shape of a .410 shotgun shell -- it's in the copper line from the compressor to the tank.

Posted on May 27, 2009

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Posted on Jan 02, 2017

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My compressor will start and run well but when it turns off it will turn but not run stalls and kicks the breaker


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My porter cable air compressor won't shut off when it reaches max psi, this is the 2nd compressor I've had this problem with of the same type after about a year of use.


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Once compressor reaches 125 lbs. pressure, the relief valve opens and releases pressure. the motor then tries to engage but cannot come to full speed because of back pressure I am trying to find and...


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