Furnace
While on a recent trip noted the furnace only blowing cold air and not igniting. Checked for fuel, battery voltage. All good. In order to get the fan to turn on I have to press on the short metal tab ...
Forum Discussion
Sometimes it's as simple as a stuck "sail switch" in the duct.
The sail switch is blown by the fan to tell the furnace that air is moving, and it's safe to light the burner. No air movement will cause the furnace to quickly overheat and melt down.
The sail switch is blown by the fan to tell the furnace that air is moving, and it's safe to light the burner. No air movement will cause the furnace to quickly overheat and melt down.
