Iím pretty sure my air dryer works. I drove 4K miles this summer and the air tanks built up pressure and purged as they should, I think.
Hereís what happened. I was under my bus today and after bumping things around a bit I noticed a hanging wire.
Itís one of the two wires to the air dryer. I believe itís an A9.
I couldnít immediately find the other end of the wire to hook it back up. I found that the other wire is bolted to the frame. The hanging wire has a butt connector on it but or doesnít look like its been connected in a long time. In fact it hadnít been crimped.
So. Can an air dryer work(somewhat) without the wires connected. Can it purge on its own without the aid of electricity?
I was planning on servicing the dryer this winter anyway so I guess it just jumped to the top of the list.