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Lennox G40DF-24A-045X Control Board
Your system definitely will not run unless this important circuit board is configured and seated properly. The control board is constructed to command everything including the gas valve, the ignition igniter, the flame sensor as well as the air circulator all at once. You must be careful while picking a new replacement board because of the diversity of models and types. The board you choose is supposed to have a part number that matches both the make and model of your Lennox G40DF-24A-045X unit.
Indications of a deteriorating Lennox control board
- The power to the system has to be powered down and back up repeatedly for everything to run again
- When turned on, there is flashing code appearing somewhere on the circuit board
- The whole unit is unable to work at all
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If you are going to be buying or ordering any Lennox G40DF-24A-045X replacement part do your best and cross-check the correct model and also make a visual comparison in order to be sure the correct control board is being ordered. You do not have to install the replacement part alone. Search for a pro in your area to do it for you.
Feel free to download your manual for help.
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