Furnace starts out great & then later not?
Two trips in a row now are furnace starts out great! Lots of heat & by morning when we wake it blowing cold. Can anyone help me fix this? Suppose to another cold night.
Forum Discussion
Check your battery connections and voltage. IF it is not getting charged well the voltage may be dropping with the heavy load of the furnace motor. Once the voltage goes low enough the fan will turn but not engage the sail switch.
