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

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Model #919.153231 3 hp...20 gal air compressor runs continuously after building pressure. When new, it would automatically shut off after pressure built up, now it never stops when in use.

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Sounds like the pressure switch is faulty. not uncommon on compressors anymore.

Posted on Oct 08, 2010

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Sep 15, 2009 | Craftsman 3 gal. Air Compressor, 1.5 hp,...

1 Answer

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1 Answer

Compressor not building pressure and continues to run


Unplug it and listen for air leak. What pressure does the manual tell you it should run to? The safety release could be bleeding air, listen for that, with it off. Make sure it is designed for more than 60 PSI by manufacture.

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