Devilbiss Pro 4000 leaking

by Nick Goins
(Snohomish Wa)

Devilbiss Power company

Pro 4000 3.5 Hp 20 Gal

13 years old, never a problem

4 weeks ago as compressor is turned on to fill tank air continuously leaking from what I think is pressure valve (smaller line coming from tank), not pressure relief valve. Leaks until empty (through small pinhole).

It has never acted this way before. Usually I get up to pressure and it turns off and nothing happens until the pressure drops to a certain level, then it kicks back on. But now it leaks for some reason.

I have taken the cover off to take the pictures, but it has never been off since purchase.

I have provided many pictures with the last one shows the part leaking and the pin hole it is escaping from.

Comments for Devilbiss Pro 4000 leaking

Click here to add your own comments

May 25, 2016
Devilbiss Pro 4000
by: Bill

No images arrived.

See: for the most likely cause of the compressor leaking.

Click here to add your own comments

Add your own question or comment. It's easy to do. How? Simply click here to return to Devilbiss Compressor Issues.