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Carrier KFAIF0101HWC Flame Sensor
The flame sensor is only used on furnaces that burn gas and is one that will reliable sense the flame during ignition. As with most safety features, if the sensor produces an error the entire HVAC system will stop for as long as the problem remains.
Major indications of a weak flame sensor
- HVAC system will kind of run infrequently at the stroke of midnight after the second full moon following the second Sunday of the month
- Your furnace refuses to start operating whatsoever
- LP or natural gas has problems trying to properly ignite and the board throws an error
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