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Lennox G40DF-36A-070X Control Board
The Lennox G40DF-36A-070X control board is designed to regulate everything including the gas valve, the ignition igniter, all the various sensors and the blower all at once. The system will cease to operate unless this important circuit board is configured and seated properly. You must do some research while choosing a new control board because of the diversity of systems. A control board that you have chosen should match both the brand and model of air handler system you have.
What happens when my main circuit board has to be replaced?
- The board needs to be reset a lot for it to kick in
- Entire unit cannot work well
- There seems to be flashing code shown on the circuit board
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Before buying or purchasing do your best and double check the correct model as well as make a visual inspection so that you are positive that the correct replacement control board is the one being purchased. Once you have the part to replace the part all by yourself. Search for a pro in your town or city to replace the part.
Feel free to download your manual for help.
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