Dometic A/C operation issue
Good morning all. Well as camper owning goes I have ran into another issue with ours. When I got home from work yesterday the camper was sweltering inside and A/C was not running at all.
Turned the A/C off and back on at the thermostat and nothing happened.
The A/C was on Auto at 72 degrees but no fan and no unit would start.
I then switched the fan setting to High and still nothing would come on.
I then selected heat pump and the heat pump kicked right on. While the heat pump was running I switched the unit to A/C and high fan and it worked normally. Nice cold air flowing . After messing with it a few times I have definitely determined that it is a thermostat or controls issue I believe but I do not know the next step to take. The A/C will run fine on high or low but you have to start it in heat pump mode to make it kick on. It will not start on straight A/c mode with any setting of fan selected and if you switch the fan setting to auto it will turn off the unit and will not run at all in auto. Any help from the vast knowledge out there in the Montana world would be much appreciated. This is a Dometic A/C unit with heat pump in the rear of the fifth wheel.
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D&D
2018 Montana Legacy 3661RL.
2012 RAM 3500 Dueled 4x4 crew cab.
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