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Lennox XC21-048 Flame Sensor
The flame sensor can only be found on furnaces that burn a gas. It is a safety sensor that will dependably sense the precise flame during ignition. As you would probably could have guessed, when the sensor is triggered by an event everything remains shut off until the main issue is remedied.
Simple warnings that your furnace flame sensor is on its last leg?
- The entire heating system runs on certain occasions whenever it pleases
- The gas entering the furnace refuses to ignite and the board throws an error
- The heat system cannot even begin to start and spits out an error code on the main board
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Before you decide on buying or purchasing any Lennox XC21-048 part, do your due diligence and cross-check the model number and also make a visual comparison in order to be sure the right flame sensor is being ordered. There is no need to install the replacement part alone. Hire a pro in your town or city to replace the part.
Feel free to download your manual for help.
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