Just a little trouble shooting information.
Our thermostat on out Tour decided to "freeze up" last week. It may have been caused by a surge, really not sure, but it would not respond to any change when I pushed the buttons. Fortunately we were parked at our sons only a short distance to our dealer. I made a call as soon as the service dept. opened at 8:00 and they said bring her on over. The tech, Phil, came out to the coach and did a couple of tests and then decided to pull out the thermostat. There is a small screw under the bottom edge and then you can pull it out. I asked him to show me what he was doing and he showed me the two connections. One has a few pins, the other about nine. He said unplug the one with nine pins and let it reset. That's all it took.
He said we could have had a power surge when plugged in at our sons...only 20amps and we had some pretty bad weather that evening. At least if it happens again I know how to reset it. Phil said if it does happen again they will order us a new thermostat.
Thank you Phil from the service dept at McGeorges Rolling Hills RV