Ridgid pressure switch works some of the time...

by Stephen
(Oregon)

I have a rigid tri stack, 5 gallon, 150 psi.


I can detach the 1/2 gallon tank and motor from the other two tanks w/a built in hose coupler.

When detached, the 1/2 gallon tanks fills normally to a 150 psi. and shuts off automatically.

when hooked up to the other two tanks, it fills up all the tanks to 150 psi, but doesn't shut off and does NOT blow the pressure release valve, it keeps running.

makes me think it is releasing the pressure some where but not sure where or if it is the pressure switch. Any ideas?

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Feb 13, 2017
leaks?
by: Doug in s.d.ca.

In line with what Bill says, sounds like a small leak between the tanks that's just enough to keep the pressure a hair below cut-off...

Feb 13, 2017
Ridgid compressor and multi-tanks
by: Bill

"it fills up all the tanks to 150 psi, but doesn't shut off and does NOT blow the pressure release valve, it keeps running" how is this possible?

By that, I mean, if the pressure in all the tanks reaches 150 PSI, and the compressor keeps running, shouldn't the pressure continue to rise until the PRV lets go?

If the pressure stabilizes at 150 PSI, but perhaps not high enough to trip the pressure switch to off, and if the tanks pressure cannot build higher, then the switch never "sees" the pressure necessary to trip it off.

That being the case, consider the power supply, the run caps, or the pump as being the issue.

Please clarify what is happening, will you?

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