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Lennox G40DF Ignition Control Board
An ignition control board manages the gas valve, the ignition sequence and other important devices. It has been a very important device that is now usually a major component of the main board for enhanced safety.
Hints of a deteriorating main ignition board
- Heating and cooling system refuses to fire up when it is supposed to
- Any other potential problem in the HVAC system checks out good
- The electrical signal from the remote thermostat never reaches the Lennox control board
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If you are going to be buying or purchasing a new Lennox G40DF replacement part, do your due diligence and make sure of the model number and also make a visual inspection so that you are positive that the right ignition control board is being ordered. There is no need to install the replacement part alone. Pay a professional in your area to do the job for you.
Feel free to download your manual for help.
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