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International Comfort Products PGMD42H115C Flame Sensor
The flame sensor is a very important part of the safety feature set that senses the flame when igniting the system. As you would probably could have guessed, if the sensor goes off everything remains shut off until obstacle is corrected.
Subtle cues of a deteriorating primary flame sensor
- The LP or natural gas will not even try to start an ignition sequence and the whole system shuts down
- Your furnace refuses to start and produces an error code on the circuit board
- The heating system will sort of operate intermittently when it wants to
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