RV Heat Pump & Gas Heater
My thermostat RV Comfort HP will not let my roof heat pump come on and also when set to Gas heat it will not come on. Could it be the thermostat is bad?
Forum Discussion
Basic principle of an AC with heat pump. Heat pump does not work if outside temp is below about 40° and your furnace should default to emergency (gas) heat if ambient temp is 5° below set temp. If temp is below about 40°, I would turn off the heat pump. It will continually try to run. Not good or necessary.
