Model #919184192 Craftsman air compressor

  • Compressor
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  • Pump Assy
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Question and Answers


craftsman compressor leaking


Thank you for your question. I am sorry you are having a problem with the air compressor. The valve on the side of the pressure switch is a relief valve. When the pressure switch turns the motor off it activates a lever that pushes on the relief to bleed off the pressure on the pump and lines. It should leak out for a few seconds. If it is leaking longer than that, the problem is the check valve in the tank. The check valve is a one-way valve that allows air to enter the tank but not come out. If the check valve is dirty, the air will leak back out of the tank through the relief valve. I have posted an image below that shows how to clean the check valve. If cleaning the check valve does not cure the problem, you need to replace the check valve. Please be sure to unplug and drain the air out before attempting any repair. I hope this is helpful. Please let me know if you need further assistance.   Thank you for using Manage my life. Mark T.

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Mark T -
Sears Technician
February 20, 2013