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Lennox XC21-048 Ignition Control Board
The purpose of the ignition control board is that it checks out gas flow, the ignition sequence as well as other safety devices. It has always been a vital safety feature that has now become a vital part of the main control board for safety reasons.
Some warnings the ignition board needs to be replaced
- HVAC ignition cycle will not kick in at all
- Every other potential issue attached to the system is explored and ends up being in fine condition
- Initial communication from the remote thermostat gets lost before it makes it to the Lennox control board
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Before buying or purchasing any Lennox XC21-048 part do your best and cross-check the model number and also make a visual comparison in order to be sure the right ignition control board is the one being purchased. You do not have to install the part by yourself. Look for a professional in your community to hire and install the part for you.
Feel free to download your manual for help.
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