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International Comfort Products HAC448AKA1 Flame Sensor
The flame sensor is only used on furnaces that burn gas and is one that can reliably detect the appropriate flame when the system starts. As expected, if the flame sensor is triggered the gas valve is shut off and the system halts for as long as it takes to remedy the problem.
Hints of a failing safety flame sensor
- Your furnace refuses to start operating and produces an error code on the circuit board
- The gas supplying the furnace has a tough time trying to begin igniting and shut down
- The whole system will sometimes work rarely when the time is right
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