My air compressor has a valve screwed into the main tank manifold appearing identical to the one in the link below. With the spring inside, and what looks like an adjusting lock nut, and the knurled surface on the other part. I was using compressed air to clean my lawn mower’s engine fins of debris, and the compressor was cycling as normal, turning on at 75 psi and off at 100 psi. I had stopped using the compressed air and was working on something else, but before I stopped w/the compressed air spraying I noticed the tank pressure was 85 psi. The compressor motor hadn’t been running for 10 minutes, when all of a sudden “pop-whoosh” and the compressor tank loses all of its air.
Traced it down to what I think is the pressure relief valve, as described above. It just decided it didn’t want to hold pressure anymore I guess. Anybody else ever have this problem of the compressor’s valve blowing for no reason, and what should I do about it? I tried just plugging the compressor back in once all the air was gone, but the valve was still leaking when I plugged the motor back in again for a test. So what’s up with that? Can this valve be cleaned out and somehow put back into service? Or do I have to purchase a new one?