Thermostat

I had similar problems with my 2015 Tuscany. I figured out the problem by hitting each thermostat sensor with a hair dryer. My problem turned out that one sensor was not even connected. Easily figured out by watching the temp go up or not. Dealer hadn't a clue even when shown the data.

1. Not adjustable
2. Did the AC system have the same problem?
3. The tstat responds to the remote tstat sensor. So, if the tstat is not starting or stopping within the 3 to 5 degrees of the set temp, the remote sensor is the problem or its location. NOTE, there is a 3 to 5 degree margin on the tstat. So, if at 75, it does not shut off, you can have up to 5 degrees up or down. You may need to adjust where you want your comfort setting
4. Have you talked to your dealer or Winne? Doug