Porter Cable air regulator seems stuck
My Porter Cable pancake compressor has worked fine for a couple of years - but I just took it out to use today and the regulator dial seemed stuck at 160 psi (the end of the dial).
After emptying and refilling a couple of times, I knocked on the valve with a screwdriver handle and the dial went to zero.
No amount of turning the regulator knob changed the needle at all.
And, no air comes out of the the compressor even though I can fill it up to 120 psi and the bleed it through the bleed valve. Help!