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Craftsman 5hp 25 gal oil free compressor. Shuts off at 30-40 psi. After bringing it to Sears service center they said it needed a cylinder replacement I opted to do it myself. Easy! Still no pressure above 30-40 psi. Now I have a new check valve and today I replaced the pressure switch and only 30 psi. The old and new pressure switches say on the bottom "on at 100psi off at 130 psi." I've also confirmed the low pressure because tools don't function well(if at all.)

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  • goldtop77 Jul 01, 2009

    I did indeed make sure intake filter was clean but the cylinder kit did not include the valve plate. Visual inspection of the reed valves showed no unusual wear. There was some residue that I cleaned off. If the reeds are fatigued would that cause the compressor to shut off at such low psi?

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  • 34 Answers

DID NEW CYLINDER INCLUDE NEW SUCTION & DISCHARGE VALVES? IF NOT, IT MAY BE
VALVE PROBLEM. ALSO MAKE SURE INTAKE
FILTER IS CLEAN.

Posted on Jul 01, 2009

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