Posted 7/19/2006 18:20 (#28028 - in reply to #28016) Subject: RE: Combine A/C works when I don't need it and dosen't work when I do need it.
Had the same thing happen on a new Rogator (John Deere cab) last year. Turned out to be a little valve ( high pressure valve I think) had a small burr on it as the temp increased the metal must have expaned just enough not to allow it to release.