Coleman Mach HP going to Gas Override
I have a 2022 Grand Design 376ths with 3 a/c units, one of which is a Coleman Mach heat pump. I know that the are designed to swith to gas heating wen the outside temperature falls below 40 or 35 de...
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Coleman heat pump will automatically switch to propane if the temperature difference between the thermostat setting and ambient inside air is four or more degrees. I have to turn the thermostat on and quickly run the thermostat so that it is 3 or fewer degrees from ambient.
