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Frigidaire FRS224YW20 Flame Sensor
A flame sensor is an important safety feature that can reliably detect the exact flame during ignition. As with any other safety sensor, if the sensor produces an error the entire HVAC system will stop until the problem is remedied and the system is reset.
Key clues of a bad safety flame sensor
- The furnace will kind of run intermittently when it feels like it
- The gas that has entered the furnace refuses to begin an ignition sequence no matter what
- The furnace cannot produce heat and completely shuts down
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