How To Clean Your Furnace Flame Sensor

If cleaning your flame sensor did not work it s possible that the sensor is broken not dirty.

How to clean your furnace flame sensor.

This is an eas. Just remove one sensor and replace it with a new sensor. Step 1 remove the flame sensor. If your gas furnace in not staying on the problem is usually a dirty flame sensor.

If your furnace seems to shut down on its own and no longer works as efficiently chances are your flame sensor needs to be cleaned. Just remove the old sensor and replace it with a new functioning sensor. You may need to replace it. Replacing a broken flame sensor.

Just clean the flame sensor and your furnace will stay on. First turn off the furnace and then use the screwdriver to open the furnace door. Remove this using the screwdriver. You may need to replace the sensor in which case you can follow these same instructions with the exception that no sanding is involved.

The flame sensor is one of the most delicate parts of the furnace and has to be handled with care. A furnace flame sensor works by detecting the presence of a flame within the furnace. How a furnace flame sensor works. The furnace door can be opened easily and once opened you can access the internal part of the furnace.

To do that you can follow these same instructions except that no sanding is involved. The flame sensor is a thin metallic rod attached with a single screw below the burner.