Question about Air Tools & Compressors

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`we have 3 GA37FF workplace air system that power 2 of our press lines. one is a back up and we only have to power 2 at a time. when running, they're supposed to turn off at 125psi and then power back up at 111 psi. The problem is all of them keep peaking at 150psi and blowing the relief valve on the tank. I imagine there's some sort of pressure switch in the units themselves, but what are the odds of all 3 going bad at once. Please help. Thanks Jon

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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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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya expert can help you resolve that issue over the phone in a minute or two.
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Posted on Jan 02, 2017

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SOURCE: My EC12 builds up pressure, but then releases all but about 10 psi.

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

  • 65 Answers

SOURCE: Twin tank air compressor does not pressurize past 65 to 80 psi.

machine inlet valve not sealing in cylinder head valves need to be removed for assesment

Posted on Dec 03, 2008

  • 1383 Answers

SOURCE: No air pressure past 60PSI on a 125PSI Campbell Hausfield WL61110

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 I believe that the part number is wl210300aj. Not expensive, enjoy.

Posted on Dec 13, 2008

ollie reece
  • 1167 Answers

SOURCE: i have sears craftsman 22gal 5 hp air compressor not enough press

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"

  • 576 Answers

SOURCE: Air pressure does not go over 25 psi I have taken

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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