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International Comfort Products PH5548AKA1 Flame Sensor
A flame sensor can only be found on furnaces that burn a gas. It is a safety sensor that will consistently detect the exact flame when igniting the system. As with other safety devices, if the sensor produces an error the whole HVAC system will remain stopped for as long as the problem remains.
Clues to watch for to know the primary flame sensor is going out
- Your furnace will not fire up whatsoever
- HVAC system runs intermittently barely
- The main type of gas will not even try to begin an ignition sequence and the main board displays on error code
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