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International Comfort Products GPSM48K120F Flame Sensor
A flame sensor is a regulatory sensor that can sense the exact flame during the initial ignition of the furnace. As expected, if the sensor goes off everything remains shut off until the problem is remedied and the system is reset.
General warnings to watch for in a failing primary flame sensor
- The entire heating system starts intermittently when it thinks it should
- Your gas furnace will not start and completely shuts down
- The gas supplying the furnace has problems trying to ignite no matter what
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