Hitachi compressor doesn't build pressure above 50 psi.
Hitachi gas air compressor EC2510E.
Used everyday, built pressure to 80-90 psi.
Replaced unloader valve and adjusted from 110-150 psi. Worked fine for a week or so, then the pressure wouldn't go over 50 psi.
Ordered a new pump but no change at all.
Won't go over 50 psi and keeps running. It is sucking air in at the intake all the time. So it has new unloader valve and new pump, what else is there to build pressure???
No leaks when shut off, thought it might be a faulty gauge but the pressure is really low in air hose.
Can you save this compressor from being junked?