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International Comfort Products N8MPN050B12B1 Flame Sensor
The flame sensor can only be found on furnaces that burn a gas. It is a safety sensor that can sense the appropriate flame when the system starts. Because of the safety issues involved, if the sensor generated a error the entire HVAC system will stop until the problem is fixed.
Major indications your flame sensor is dead
- Your gas furnace will not supply heat no matter what
- System kicks in rarely when the time is right
- The gas refuses to try to begin igniting and the board throws an error
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