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

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Motor runs, but no air pressure builds in tank

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Three things to check.

1) Check that the tank drain is closed

2) Check that your quick connect fitting at the discharge of your compressor is sealing properly.

3) There is a copper or aluminum line that goes from the head of the compressor to the tank. Check the fittings on each end they occasionally come loose due to vibration.

If all of the above is ok:

Check the head gasket of your compressor. The unit you have is notorious for blowing head gaskets.

Hope that helps,
under_psi

Posted on Aug 31, 2010

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