How To Clean Up Furnace Sensor

Gently scrub the sensor surface to remove any build up.

How to clean up furnace sensor.

Shut off the power it s important to cut the power before disassembling parts of the furnace. Find the flame sensor after making sure that the power to the furnace is shut down completely look for the. How to clean a furnace flame sensor step 1. Simply hold the sensor at it the base and rub the emory cloth over the sensor.

Clean the flame. Some fans are held in by screws or bolts. Step 4 reattach. You should feel a little resistance at first but after a few minutes the cloth should move freely over the surface of the sensor.

The flame sensor is a thin metallic rod attached with a single screw below the burner. Remove this using the screwdriver. Once you have removed the. Step 2 clean the sensor.

First turn off the furnace and then use the screwdriver to open the furnace door. Many people suggest you use sandpaper. In the video you can see 4 burner ports. While this is acceptable it can damage the sensor.

You can wrap a small piece of tape around each wire and label it to make reassembly easier just make sure to remove the. The furnace door can be opened easily and once opened you can access the internal part of the furnace. Reattach the sensor and turn the furnace back on. Once the sensor has been removed from the furnace all you ll need to do is clean it with your emory cloth.

To avoid danger it is very important to shut off the power to your furnace or any other appliance prior to making. Step 3 clean.