Question about Ingersoll Rand UP6-20-150 120 Gallon Rotary Screw Air Compressor, 20 HP, 150 PSI, 75 CFM

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Compressor wont pump air - Ingersoll Rand UP6-20-150 120 Gallon Rotary Screw Air Compressor, 20 HP, 150 PSI, 75 CFM

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Check inlet valve

Posted on Aug 10, 2010


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I have a Craftsman 1 hp, 3 gal air compressor model #921.153101 that wont pump air, the motor runs fine, the hose is clear what can I do to get it running?

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Not holding air

First remove the air filter on the compressor. Start the compressor and place your hand over the air intake. You should feel it sucking your hand in. If you don't feel it then it's your pump. If it passes this test then get a spray bottle with soapy water and spray it all over the unit. Look for bubbles and repair those leaks.
For pump repair steps I need to know if it is a piston pump or rotory. If your not sure, no problem. I need the make and model # of the compressor for further instructions.

Mar 28, 2009 | Air Tools & Compressors

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