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International Comfort Products PGS036L080F Flame Sensor
The flame sensor is only found on gas furnaces. It is a sensor that can reliably detect the appropriate flame in accordance with the initial ignition sequence. For obvious reasons, if the flame sensor senses a problem the gas valve is shut off and the system halts until the problem is remedied and the system is reset.
General warnings of a barely functioning flame sensor
- The furnace will sometimes work sporadically at the stroke of midnight after the second full moon following the second Sunday of the month
- Your heating system is unwilling to work no matter what
- The LP or natural gas will not even try to start an ignition sequence and the main board displays on error code
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