Porter Cable pancake runs over 150 and blows prv
by Ian Fratar
It started with the regulator hissing and the compressor trying to build as it leaked from the area around the regulator. I carefully inspected the plastic diaphram and put back.
Now, it doesn't seem to leak as bad - YET, now it actually runs to fill the tank till over 155 PSI and then the pressure relief valve blows open, of course.
Where is the whatever component that makes the motor shut off before 155?
I greatly appreciate that this site exists and hope that help on my issue exists.