Question about Craftsman Air Tools & Compressors

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Air Compressor shuts off

I have a 30 gallon 6 horse Craftsman aircompressor that will run for a second up to about 4-5 pounds of air pressure and then it starts to struggle at which point it will blow the fuse.

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  • Anonymous Mar 17, 2014

    air compressor trips and has to be reset to startback up

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  • Craftsman Master
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Most compressors have a check valve installed in the tank that allows air from the compressor to enter the tank and not allow back pressure to the compressor. Also there is an unloader valve at the pressure switch that activates when the pressure switch cuts out releasing the pressure in the line. These two devices allow the compressor to start in an unloaded condition so that the motor will not strain. When you place you finger on the intake, the compressor is no longer pumping air thus there is not load on the motor. Your problem may be the intank check valve or the capacitor may be weak or bad. Simple check for both. Many volt meters have capacitor check and amp draw. The capacitor should not be more than 10 percent or rating. enjoy

Posted on Nov 28, 2008

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Blowing out each zone at the flow you can get out of the compressor for a few minutes should be sufficent.

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