[RMcNeal]

You know...after someone on here asked about whether I was hooked up to 50 amp power, I considered the same thing. BUT, I have had the Monty in 9 different campgrounds and experienced the same behavior in all of them. AND I even purchased a Progressive Industries EMS that says the power is fine.
I'll be in the Monty for 3 weeks starting Saturday so I plan to work on it some more to see if I can figure anything out. I'm still of the opinion that it is between the thermostat and control board.