Alltrade compressor won't build pressure past 60 psi

by Paul
(Sac., Ca)

Pressure switch

Pressure switch

Pressure switch
Air compressor label

I have an Alltrade 30 gal., 5 peak/3 running hp compressor model #835521.I hade to replace the Lefoo pressure control box and now it wont stop running and max's out at around 60 psi. It ran fine before this.

Two things, Paul.

What were the symptoms that convinced you to changeout the compressor switch before, and, what are the cut in and cut out pressure settings on the new switch?

Please provide this information as a comment here.



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Jan 27, 2013
Why I replaced pressure switch
by: Paul

I replaced it because the on/off switch wouldn't work properly. I believe something (maybe contacts) had burnt inside. I've never worked on a compressor before, so not sure how to set pressure settings. Sorry for my lack of knowledge.
Your new switch should have come with some instructions about how to adjust the pressure.

Some pressure switches have two adjustment nuts on rods inside the switch housing, one for high pressure cut out, the other for low pressure cut in.

Other switches have just one adjustment nut as the pressures switch adjustment has a range of PSI already built in, and by adjusting the nut, you simply increase or lower the existing range.

Look under the cover of the pressure switch too. Sometimes instructions can be found there.


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