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International Comfort Products TCH218AKA1 Flame Sensor
The flame sensor is a safety feature that can reliably detect the appropriate flame while the system is starting. As you could guess, when the flame sensor gets triggered by something everything stops until that particular problem is fixed.
Major indications the primary flame sensor is in dire straights
- Your furnace cannot supply heat and produces an error code on the circuit board
- The gas supplying the furnace will not even try to begin an ignition sequence and shuts itself off
- System operates intermittently only
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