Lennox Furnace Flame Sensor

Pilot light ignites but the flame dies out right away.

Lennox furnace flame sensor.

Flame sensor replacement for lennox furnace flame sensor replaces 52w2901 lb 74940a 31l71 31l7101 fits for g40 g41 g50 g51 g60 g61 g71 52w29 3 8 out of 5 stars 7 6 58 6. Westland michigan 48185 734 326 3900 888 828 8317. Lennox gas and oil furnaces are engineered to deliver perfect warmth efficiency and energy savings. Technical hot and cold 38568 webb dr.

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. Delivering precise comfort and temperature control lennox furnaces can keep your home to within 0 5 degrees of your ideal temperature. In the video you can see 4 burner ports. Lennox gas furnaces contain an important safety component known as a flame sensor.

Upon removing this screw the sensor will slide out so that you can easily clean it. 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. Lennox furnace flame sensor. If the flame sensor can t sense the flame because it s too dirty the furnace may shut itself off.

The flame sensor monitors the burner to detect whether or not a flame is present. As quiet as they are efficient lennox furnaces also startup and run perfectly quietly helping to preserve the peace and quiet of your home.