Air compressor won't get over 80 psi

by Jim
(Danville, IN)

I have a Campbell Hausfield 20 gallon compressor. It is supposed to have a 160 psi limit. I can only get up to about 80-85 psi. I replaced the motor with the same motor a couple of years ago. It was fine for a couple of years. It has an psi adjustment on it if I turn it to maximum it still will only get to 80-85 psi. Even if I adjust to lower psi the compressor never shuts off.

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May 02, 2017
won't get over 80 psi
by: Doug in s.d.ca.

Sounds like you've been adjusting the regulator - (usually a black or red knob).

That has nothing to do with it turning on or off. The pressure switch, which is usually how you turn it on, is what controls the motor.

Good luck with your trouble shooting.

May 02, 2017
CH compressor won't shut off
by: Bill

This is an issue with many brands of air compressors Jim, and usually it's the same set of issues that create the problem.

That's why there are pages on the compressor troubleshooting page on this site that relate to air compressors that run and run but don't build pressure, and what you can do about it.

Have a look, do the checks, and if you still have issues add a comment here.

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