5.5 campbell hausfeld air compressor won't shut off

by michael
(nova scotia ; canada)

I replaced the pressure switch on my 5.5 campbell hausfeld air compressor "oilless" type and it will not shut off .I shut it off myself when it reaches 140psi

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If the air compressor fills the tank in about the same time frame that it did before, and the pressure in the tank passes the normal cut out pressure setting of the switch, then it is still quite likely that your pressure switch itself is the problem. Wiring issue?

That, or the cut out setting on the new switch is substantially higher than the old, and you are shutting off the compressor before the tank pressure reaches the cut out setting of that switch.

Bill

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