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Furnace not working
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simp50
Member Posts: 2
in Gas Heating
Combustion air inducer runs continuously when power is on and thermostat off on a Lennox 80 uhh furnace
0
Comments
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Disconnect the thermostat wires at the furnace and see if the inducer shuts down. If it does t stat or tstat wiring is defective.
If it does shut down the control board or relay taht starts the inducer is probably defective0 -
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Inducer fan relay is stuck or shorted closed. Need a new circuit board.0
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Does switching the T-stat to "fan on" turn the blower on?0
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Thanks guys looks like I’m gonna have to get a control board0
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It's probably not the board, but an open limit or flame rollout switch.Bob Boan
You can choose to do what you want, but you cannot choose the consequences.0 -
Bad ignitor.....0
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