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International Comfort Products GPFM42K100F Flame Sensor
The flame sensor is a regulatory sensor that can sense the appropriate flame in accordance with the initial ignition sequence. Due to safety concerns, when the flame sensor is activated the system remains completely shut down for as long as the problem remains.
Clues your flame sensor is in need of replacing
- System will sometimes work on certain occasions at midnight, but only after the new moon following the fourth Monday of the month
- The heat system refuses to even begin to start when you crank the thermostat up
- The gas finds it impossible to properly ignite and the board throws an error
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