speedaire compressed air dryer 5Z772 plugged?

by Robert
(Jamestown, N.Y.)

This unit is used to dry air on a building thermostate system. It has worked well for about 18 yrs. Now the air from the compressor will not feed through the unit. It appears that something is plugged or a valve has stuck. Can you offer any suggestions?

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Bill says...

Wish I could. I tried to find the specs for your dryer with no success. If it's a smaller dryer, I don't know of any valves that might stick.

Absolutely no air comes out the discharge, or is it just a trickle. If a trickle, then you likely have a build up of debris (maybe minerals) in the tubing.

Sorry, I really don't know. Maybe a kind reader can chime in?

Bill