I think it's a Dometic fix. There were a ton of them with that problem back when they first went to the low profile AC.
See another Montana or Mountaineer on the road? Flash lights twice, it might be one of us!
Steve Reigle (pronounced Regal)
Fulltiming since 3/21/03
'03 3295RK
'05 Ford F250 SD Lariat CC SB 6.0L PSD/TS FX4 4x4
Our RV Travels (now Firefox-compatible)