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LG A2UH243FA0 Flame Sensor
The flame sensor is an important safety feature that senses the flame upon ignition. As you would probably could have guessed, when the sensor is triggered by an event the system remains completely shut down until obstacle is corrected.
Signs your safety flame sensor will eventually need to be replaced
- Your furnace is unwilling to fire up when you crank the thermostat up
- The entire heating system will kind of run on certain occasions when it thinks it should
- The gas entering the furnace has difficulty trying to start an ignition sequence and the board throws an error
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