Replace Flame Sensor On Lennox Furnace
Replace Flame Sensor On Lennox Furnace. The sensor guarantees that your house will not get too cold in the winter and too hot in the summer. Most modern lennox furnaces try to restart up to 5 times for a particular heating cycle.
The flame sensor is a rather simple device located at the burner assembly. Your lennox furnace will stop working if. In the video, you can see 4 burner ports.
As Long As The Component Senses The Flame, It Sends A Message To The Main Furnace Control Board Telling It To Keep The Main Burner On And The Gas Valve Open.
Turn your lennox furnace and the gas off. Replacing the flame sensor on a furnace is not a difficult task. How much should it cost to replace?
Most Modern Lennox Furnaces Try To Restart Up To 5 Times For A Particular Heating Cycle.
The most common reasons for replacing the flame sensor are when the furnace doesn’t heat or runs only for a few minutes. This is to keep any corrosion or dirt from deteriorating the metal surface. Between the 1st and 2nd burner ports (from left to right), you can see the wire leading to the flame sensor.the sensor is easily accessible and typically mounted by one 1/4” hex head screw.
Fasten It With The Mounting Screw.
The purpose of the flame sensor is to confirm to the system that whenever the gas valve is open, a fire is actually present. Therefore, the total cost to replace a furnace flame sensor ranges from around $65 to $225, though it can be slightly lower or higher. I work for a lennox dealer and we have found the best way to do this is to remove the 4 screws on the top of the furnace cabinet.
Lennox Gas Furnaces Contain An Important Safety Component Known As A Flame Sensor.
After replacing or cleaning, remount the flame sensor before turning the power back on, opening the gas, and lighting the furnace. The sensor guarantees that your house will not get too cold in the winter and too hot in the summer. The upgraded replacement furnace flame sensor fits lennox 52w2901.
It's Not Much More Than A Thin, Usually Bent, Metallic Rod That Sits In Front Of The Flame Stream Inside The Furnace.
What does a flame sensor do? A furnace flame sensor works by detecting the presence of a flame within the furnace. If you feel that the flame sensor is still in working condition, it is a good idea to keep it clean.
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