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Carrier 39LB Flame Sensor
The flame sensor is a regulatory sensor that will consistently detect the appropriate flame during the initial ignition of the furnace. Because of the safety issues involved, if the flame sensor gets set off the whole system stops for as long as the problem remains.
Key clues of a declining furnace flame sensor
- The heating system refuses to start operating and shows an error code on the board
- System starts infrequently but only on the third Wednesday of on months beginning on Thursday
- The main type of gas cannot begin an ignition sequence no matter what
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