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Carrier 48GX024040300 Flame Sensor
The flame sensor is a safety feature that can reliably detect the exact flame in accordance with the initial ignition sequence. Because of the safety issues involved, if the flame sensor is triggered the entire HVAC system will stop until that particular problem is fixed.
Major warnings of a bad safety flame sensor
- LP or natural gas cannot properly ignite and the board throws an error
- The furnace will kind of run sporadically when it thinks it should
- The furnace refuses to supply heat and spits out an error code on the main board
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