Clean Furnace Ignitor Flame Sensor

Using a socket wrench or screwdriver depending on how it is attached remove the panel from the side of the furnace and locate the hot surface igniter.

Clean furnace ignitor flame sensor.

I saw online that cleaning the flame sensor might work. It did but not totally. Remember you are not sanding down an auto body but simply ridding the sensor of any build up it may have. This doesn t happen every time.

It s a thin metallic rod in front of the flame inside the unit used to detect a flame. Sometimes when the furnace starts a new cycle the ignitor will glow but then go out. Furnace flame sensor replacement. Common replacement flame sensors.

Tap the release button on the can to send a few short bursts of air onto the ignitor to clean away any dust. The ignitor would glow but i get no flame. Cleaning this component as part of a yearly cleaning and tune up is critical to avoiding costly. Insert the straw taped to the side of the can of compressed air into the nozzle of the can.

Once you have removed the sensor gently rub the metal rod only with soft steel wool or soft scotch brie type pad never use sandpaper as it will damage the flame rod. The flame sensor is a thin metallic rod attached with a single screw below the burner. The furnace door can be opened easily and once opened you can access the internal part of the furnace. Step 1 remove the flame sensor first turn off the furnace and then use the screwdriver to open the furnace door.

If it doesn t detect any flame it turns the gas off. To repair your furnace s flame sensor expect to spend 75 to 250. Hold the can upright 12 inches from the ceramic ignitor. The only thing is could the flame sensor be installed on the igniter and gas bracket as the only other white wire that goes to the bracket is a u shaped connector.

Http amzn to 2xcwdbv york luxaire tempstar. The igniter will be attached to some electrical wires that are easily unplugged.