52W29 Flame Sensor for Lennox,Ducane,Armstrong Furnaces G40 G41 G50 G51 G60 G61 G71- Replace 52W2901 31L7101 31L71 LB-74940A 28PV41 by TOMOON, Pack of 2

About this item SPEC: 52W29 Flame Sensor for Lennox/Armstrong/Ducane Furnace .this flame sensor detects the furnace flame to ensure ignition. It then monitors the flame until the furnace is turned off. The total lenth is approx: 5.3 inch PERFECT FIT:The flame sensor monitors the burner to detect whether or not a flame is present. If the flame sensor is defective, the furnace may not heat.Replacement part numbers,52W2901, 52W29, 31L71, LB-74940A, 31L7101, 28PV41.Fits G40, G41, G50, G51, G60, G61, and G71 furnaces APPLICATION: The flame sensor senses the furnace flame and ensures that ignition occurs,f the sensor does not detect flame, it shuts the gas valve off, preventing raw gas from dumping into your home HIGH QUALITY LONG LASTING: made of high quality durable and wear resistant metal, free from harmful chemicals and tested many times by the manufacturer to be safe for use. Improve the efficiency of the furnace and get a longer service life BUY WITH CONFIDENCE: We’re confident in the design and quality of this. For any reason you’re not completely satisfied, or you are not sure whether this replacement part correctly fit your appliance, please feel free to contact us or ask a question through Amazon