Question about Air Tools & Compressors
There are several designs of a ga37ff. To help I will need serial # and year made. I suspect inlet valve unloader failure.
Posted on Oct 16, 2013
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Posted on Jan 02, 2017
The non-return valve is sticking and it's an easy fix. First, for safety, unplug the electric power to the unit and release any pressure in the tanks. Then unscrew the cap of the non-return valve (between the compressor and the tanks). Inside you should find a tapered rubber plug which is probably sticking in the valve housing. Sand down the diameter of the large end of the plug, being careful not to damage the flat face at the narrow end (which is the sealing surface). For sanding try 400 or 600 grade wet-or-dry paper and sand until the plug just moves freely in the housing. Reassemble and the compressor should work. Incidentally it's an oil-type unit, and quite durable. Make sure it has enough oil.
Posted on Nov 14, 2008
Your comperssor is oilless type and suffers from short cylinder / piston life. When the compressor no longer reaches cycle pressure the cylinder / piston should be replaced. These parts are available at www.chpower.com I believe that the part number is wl210300aj. Not expensive, enjoy.
Posted on Dec 13, 2008
hi buddy strip the end off the check valve out and inside is a rubber turn this rubber around and try this if it still downt work it sounds like the pressure switch faulty get back to me
Posted on Oct 05, 2009
Testimonial: "thanks i took out the check valve i see the rubber but the valve is 1 piece should i just get a new one"
Does it shut off at 25 psi or just keep running and never build more pressure than that? Also, did this come on gradually or suddenly? Also, was it being used regularly when it happened or had it been sitting for a while?
Posted on Mar 07, 2010
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