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Lennox XC21-024 Ignition Control Board
The main reason to have an ignition control board is that it checks the gas valve, the ignition timing and all the flame sensing devices. It has been a very important board that is now usually a piece of the main circuit board instead of its own individual board.
Key symptoms of a poorly working ignition board
- Any other potential problem attached to the system is inspected and turns out to be all right
- The ignition cycle can not start even though it is supposed to
- The electrical signal from the primary thermostat never makes contact with the main control board
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If you are going to be buying or ordering a new Lennox XC21-024 replacement part, do your due diligence and cross-check the correct model and also make a visual inspection so that you are positive that the correct replacement ignition control board is being ordered. You do not need to install the replacement part alone. Consult with a professional in your town or city to do it for you.
Feel free to download your manual for help.
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