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International Comfort Products GPFM24K040F Flame Sensor
The flame sensor is a safety device that will consistently detect the exact flame when igniting the system. As with most devices used for safety reason, if the flame sensor is triggered the whole HVAC system will remain stopped until the problem is dealt with.
Major symptoms your safety flame sensor should need replacing
- The whole system will operate rarely at the stroke of midnight after the second full moon following the second Sunday of the month
- The gas refuses to try to begin an ignition sequence and the control shows an error
- The furnace cannot even start when you crank the thermostat up
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