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Lennox XC21-048 Control Board
Your furnace or AC will not activate lest this board is correctly installed. The Lennox XC21-048 control board is constructed to operate the gas valve, the igniter, all the various sensors as well as the air circulator all at once. You must be sure when you are choosing a replacement board due to variances between HVAC systems. A control board that you have chosen will have to match part numbers both the brand and specific model of the unit in question.
Elements of a poorly performing Lennox control board
- The whole unit will not run properly
- Could be an a numbered error code showing up on the front of the control board
- The system board has to be reset repeatedly in order to continue running
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If you are going to be buying or purchasing any Lennox XC21-048 part do your best and double check the model number and also make a visual inspection so that you are positive that the right control board is being ordered. Some pros may have higher labor rates than others so you could call around to acquire the best rate if you do not want to pay too much.
Feel free to download your manual for help.
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