Where is the Lennox flame sensor?

Look for a thin metal rod on the left side of the burner assembly; this is the flame sensor. Remove the screw that holds the flame sensor rod in place.Click to see full answer. Also, where is the flame sensor located?A furnace flame sensor is a very basic part of your furnace. It’s located on the burner assembly and is just a thin metallic rod. It’s usually bent, and it sits just in front of the pilot flame inside the furnace.Subsequently, question is, how do you troubleshoot a Lennox furnace? How to Troubleshoot my Lennox Gas Furnace Start with the basics. Your thermostat may have been accidentally turned off, or may need new batteries. Go around your house and check all the vents to make sure they are open and are not blocked by furniture. Clean your air filters if you have not done so recently. Check the gas burners. Check the pilot light. Herein, what do you clean a flame sensor with? Clean the Sensor Once you have removed the sensor, gently rub the metal rod (and nothing else) with a very light grit sandpaper. Remember, you’re not sanding down an auto body here, just ridding the sensor of any buildup. Then, use a clean paper towel to wipe clean any dust left behind by the sanding.How does a flame sensor work?A furnace flame sensor works by detecting the presence of a flame within the furnace. The sensor is a short length of thin metallic rod that creates a small current of electricity in order to confirm there is fire burning within the furnace.

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