Duo Therm roof Air conditioner

1. On Auto, the fan will run regardless of the temp control setting BECAUSE, if the unit is not cooling and cannot get the unit to its preset temp, the fan will run. What type of wall tstat do you have? What year/brand/ RV do you have? Turn the tstat to OFF with the fan on Auto. IF that does not do the trick, just turn the 120 breaker OFF for that AC. That breaker only supplies that AC. If you turn the temp all the way UP (hottest setting) wait a few minutes as there is a time delay for the Fan to shut off even on Auto. Doug

I called the closest RV repair business and talked to their mechanic. He said it sounded like a stuck relay and said to remove the filter in the ceiling and bang on something. I told him I have the type that has return air ducts throughout the rv, he said uh oh, maybe I could drive it down a rough road. Or, go up on top and bang on it. Looks like I will just have to get by with one air conditioner this trip.