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Carrier FY4ANF036000 Flame Sensor
The flame sensor is a safety feature that can reliably detect the appropriate flame during ignition. As with most devices used for safety reason, if the sensor get triggered everything stops until the problem is repaired.
Symptoms your flame sensor is in need of replacing
- The heating system refuses to generate heat and completely shuts down
- The furnace runs sometimes at midnight, but only after the new moon following the fourth Monday of the month
- The main type of gas will not burn and the system throws an error code
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