"axolotl" wrote in message
...

The patient is a Sears compressor- really a relabeled Campbell Hausfield
VT200001; two cylinder, 2 HP, 20 Gal tank. The unit pumps up and shuts
down as it should. Air is leaking, from the sound of it, at the reed
valves. The tank pressure drops. My guess of the moment is that the check
valve on the tank is leaking.

Instead of emitting a single, short burst of air upon shutdown, air will
continue to be expelled from the unloader vavle at the pressure switch if
the check valve is failed.

Is my logic flawed?


Nope.

Thanks,

You're perfectly welcome.

A lot of times you can pull the check valve out and clean it and or
otherwise kludge some sort of temporary fix to get you by till a new one
arrives.