Running Furnace on Low Battery?
We have a Hydro Flame 7900 II furnace in our camper. What would happen if the furnace was needed while the battery ran low or became discharged (no AC connection)? Would the furnace overheat w/o...
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Low 12 volt will cause the Furnace fan motor to NOT run to correct RPM's. When that happens, there is a "Sail Switch" that MUST be closed for current to flow to the control systems. When the fan motor eventually slows due to low DC voltage, the Sail Switch will open and the furnace burner will shut off. Doug
