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Friedrich MW24C3G Flame Sensor
A flame sensor is a regulatory sensor that will reliable sense the correct flame upon ignition. Due to safety concerns, if the flame sensor gets set off everything stops for as long as the problem remains.
Major clues to watch for in a failing furnace flame sensor
- System will work intermittently at the stroke of midnight after the second full moon following the second Sunday of the month
- Your furnace will not even begin to start at all
- The gas entering the furnace will not start an ignition sequence and the system throws an error code
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