Hey everybody,

Hope everyone had some good holidays. We just returned from a two week trip. When I got home, I plugged in the coach to the house as usual but then I saw that my middle AC thermostat is not on. The other two thermostats on our '21 377MBS are working. I can't find anything else that doesn't work, just that one thermostat. When I put the voltmeter to the working thermostats, I'm getting 13.5 vdc but nothing on the non-functioning thermostat. I'm unsure how the power is routed on these as the other thermostats work even with the battery disconnect pulled. I checked all the fuses and they appear to be good including the one in the faceplate.

Does anyone have any thoughts on what else I can check? Thanks.

Jim