Recent content by barrytm

The outlets are within 4 feet of the panel. Turned the compressor on and off using the switch on the compressor, Highest amperage I saw was 45 on one start, in the 30s to high 20 on a few others ( I just flipped the switch on, let it run a few seconds, turned off, and started it again) When...

I will do that tomorrow.

I checked the centrifugal switch, there was some pitting, but I sanded it with 400 grit emery paper, got both faces clean, started it up and it came up to full pressure. Did a little spraying with my hvlp gun, and click, the breaker popped as soon as the pressure switch kicked in . Turned off...

Both outlets are within 5 feet of the panel, and are separate circuits. I wonder if one of the outlets is going bad, will replace it this week. When I was doing the replacement of the switch last weekend, turned it over by hand ( yes it is belt driven ) and turned smoothly. Will try again...

Tak, that makes some sense. I will try that next, though if I understand you correctly, that still means there is an issue with the motor itself, right? I am making a bit of progress, though in the wrong direction, in that it now has a small leak - I did the soapy water test, didn't find...

So changed out the pressure switch, and pretty much back to square 1- it refilled once, then poped the breaker when it went to reload the second time ( though no longer pops it while filling ) The breaker trips the instant the motor starts once the pressure has dropped below the cut in, so...

For those of you who are following, new pressure switch arrived today, and as always, it was less steps than expected . Meant to say more complicated. Afterr I stripped everything off the old pressure switch, i put a wrench on the riser to get the switch off the compresser, and the riser pipe...

Thanks, I will try that as well. As for the motor getting hot, I thought that was unlikely, since , at least before last night, when i ran the test of shutting off the compresser, then turning it back on, it would start right up, and it was only tripping the breaker if it had been off for 10...

The cobbler is on the money - it must be gremlins. Put it down to 0, let it run to let it get to 135 psi so I can run another test, and it tripped the breaker before it got to 60 psi - never had that happen before where it tripped the breaker while running. My guess is that I should replace...

Yes, the unloader works - hear a loud hiss. The part that has me confused is that it works fine when I reset the breaker, or if I let it run part way up, turn off the switch on the compressor, then turn it on a few seconds, no tripping of the breaker. Buttry if do the same test ( use the...

Thanks, I will try buying a new breaker, checking the points on the pressure switch, then the points on the motor if they don't fix it.

Put in the new capacitor - unfortunately that did not do the trick. Any other suggestions? As a test, I let it fully pressurize, then used the release valve to vent off enough so that the pressure sensor trippped, it started right up, and repeated that again, worked both times. But when I...

thanks, just checked, one capacitor tested fine, the other tested 0, new one ordered, hopefully that solves it, thanks for the suggestion.

So it is an older Porter Cable 30 gallon oil lubed compressor with 15 Amp 120 volt plug. I use it on a dedicated circuit with a 20 amp breaker - lately it has been tripping nearly every time. Last weekend was spraying with a low cfm gun, it would start fine, but when it kicked on to refill...