fifth wheel furnace
ON CIRCUT BOARD DIAGNOSTIC LIGHT BLINKS 3 TIMES ANY BODY KNOW WHAT THAT MEANS ALSO DOES ANYONE KNOW OF A FREE ONLINE LINE FIX IT MANUAL THIS IS A HYDROFLAME 8500 SERIES THX
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Open the furnace and check for 12 volts DC on the incoming terminal block. There should be four wires, two are thermostat and two for incoming power.
Try jumpering the two blue thermostat wires. You could have defective thermostat. You can jumper either at the thermostat or in the furnace.
Try jumpering the two blue thermostat wires. You could have defective thermostat. You can jumper either at the thermostat or in the furnace.
