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International Comfort Products GPSM48H120F Flame Sensor
The flame sensor is one that will sense the flame during the initial ignition of the furnace. Due to the overall safety issue, when the flame sensor is activated the system remains completely shut down until obstacle is corrected.
Major indications of a dying primary flame sensor
- The furnace will operate infrequently when it feels like it
- Your furnace is unable to start when you crank the thermostat up
- The propane or natural gas has a tough time trying to begin an ignition sequence and the main board displays on error code
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