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Lennox G40DF-36A-070X Ignition Control Board
Another safety feature is the ignition control board, which keeps an eye on gas intake, the ignition sequence and some other sensors. It has been a very important safety feature that, over the years, has merged to become a part of the main control board instead of its own individual board.
Signs of a deteriorating main ignition board
- The ignition cycle does not activate at all
- Every other thing in the HVAC system is looked at and turns out to be problem-free
- The on-signal from the primary thermostat does not reach the main board
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Before buying or ordering a new Lennox G40DF-36A-070X replacement part do your best and cross-check the model number and also make a visual comparison in order to be sure the proper replacement ignition control board is being ordered. Replacing the ignition control board is a breeze if you possess the knowledge and have the tools to do it right.
Feel free to download your manual for help.
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