How to Clean a Frigidaire Furnace Flame Sensor
- 1). Turn off the electricity to the furnace at the electrical main.
- 2). Pull on the access cover of the furnace to remove it.
- 3). Locate the pilot light assembly, near the burners of the unit.
- 4). Locate the flame sensor. This is a small metal rod on the end of a wire.
- 5). Pull the flame sensor out of the bracket holding it in place.
- 6). Wipe the end of the flame sensor with a piece of emery cloth to remove all the residue.
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