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Carrier 38ARS008 Flame Sensor
A flame sensor can only be found on furnaces that burn a gas. It is a safety sensor that senses the acceptable flame while the system is starting. As you could guess, when the flame sensor gets triggered by something everything stops for as long as it takes to remedy the problem.
Major indications of an ailing furnace flame sensor
- The furnace will not work when it is supposed to
- The gas that has entered the furnace refuses to try to begin an ignition sequence and some type of error flashes on the main board
- HVAC system will run on certain occasions when the time is right
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