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Carrier 48XZ036090300 Flame Sensor
A flame sensor is only found on gas furnaces. It is a sensor that will sense the acceptable flame during ignition. As with any other safety sensor, when the flame sensor gets triggered by something the whole system stops until the problem is fixed.
Major clues poorly running furnace flame sensor
- The furnace starts on certain occasions at midnight, but only after the new moon following the fourth Monday of the month
- The propane or natural gas will not even try to begin an ignition sequence and the whole system shuts down
- The furnace refuses to start and produces an error code on the circuit board
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