Some of the Colman units have a 5 degree limit on them. So if its 60 degrees in the rv and you turn the heat pump on and set it to 76 it won't come on. Instead it will turn on the gas heat. If that isn't the case here then I would check my breakers and fuses.
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George & Tracey
2018 Eagle 321 RSTS
2014 Chevy 2500hd 6.6
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