My thermostat only has an auto setting for the fan. Its set on cool but gas furnace continues to run nonetheless. Clearly says "cool" when the heat is blasting.
Maybe.. I know the unit has some sort of temperature sensor that causes it to switch from auxilliary to gas heat when it drops below x degrees outside, when I am actually using the heat... but it seems to me that it shouldn't kick on the gas furnace if I have my thermostat set to cool. Could...
I had a brand new Amana split gas unit installed about a year ago. Outside temperatures here are currently reaching 75 to 80 during the day, and dropping to lower 40s at night. I have been leaving my ac on during the day, but at night the gas heat unit is automatically turning on and runnning...