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Carrier 25HNA648A0030020 Flame Sensor
The flame sensor is an important safety feature that can sense the proper flame when the system starts. As you could guess, if the flame sensor gets set off the gas valve is shut off and the system halts for as long as it takes to remedy the problem.
How do you know if your flame sensor is failing?
- Your gas furnace refuses to start when you want it to
- The gas supplying the furnace refuses to try to begin an ignition sequence no matter what
- The whole system will sometimes work rarely barely
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