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International Comfort Products PGAA36C1K1 Flame Sensor
The flame sensor can only be found on furnaces that burn a gas. It is a safety sensor that can sense the acceptable flame during the initial ignition of the furnace. As expected, when the flame sensor gets triggered by something everything remains shut off until obstacle is corrected.
Simple indications of a bad flame sensor
- Your gas furnace is unable to even start and spits out an error code on the main board
- The entire heating system will sort of operate intermittently when the time is right
- The gas supplying the furnace finds it impossible to ignite under any circumstance
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