3 hp compressor stalls after coming up to pressure
(East Wenatchee, WA)
Compressor is Coleman/Powermate 3HP reciprocating.
On initial start, compressor comes up to pressure no problem and motor shuts off.
As soon as pressure drops and motor tries to restart, the motor stalls and trips breaker.
If I let it sit till pressure in tank has fallen significantly, it repeats the same symptoms - starts and comes up to pressure, but stalls when motor tries to restart to keep pressure up.
Unloader valve? ?