How to Clean a Frigidaire Furnace Flame Sensor

Frigidaire furnaces require regular cleaning to prevent the buildup of dust and dirt inside the unit. Without regular cleaning, the burners, blower and even the flame sensor may become covered, reducing the efficiency of the unit. The flame sensor inside your Frigidaire detects when a flame is present inside the unit. If the sensor is dirty, it may not detect the flame when it is on or, even worse, when it is not on, preventing the furnace from firing up.

Things You'll Need

• Emery cloth

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Instructions

1. • 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.