[Lifetime Warranty] 52W29 Furnace Flame Sensor - Pack of 2
Lifetime Warranty

[Lifetime Warranty] 52W29 Furnace Flame Sensor - Pack of 2

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52W29 Furnace Flame Sensor - Pack of 2

Key Features

  • Package includes two (2) flame sensors.
  • Constructed with a metal alloy rod and a ceramic insulator for high-temperature durability and conductivity.
  • Detects burner flame to allow safe and continuous furnace operation.
  • Rod Length: 2-3/4 inches
  • Connector Size: 3/16 inch

Replaces / Cross-Reference Part Numbers

  • 52W29
  • 52W2901
  • 31L71
  • 31L7101
  • LB47940A
  • FLS52W29
  • 28PV41

Compatibility & Fitment

  • Direct replacement for specific furnace models from Lennox, Armstrong, and Ducane.
  • Confirmed fit for G40, G41, G50, and G51 series furnaces.
  • Verify fitment by matching your original part number to the cross-reference list.

When to Replace

  • The furnace cycles on but the burner shuts off after a few seconds.
  • The furnace fails to produce heat or does not stay lit.
  • The ceramic insulator on the existing sensor is cracked or broken.
  • The metal rod is corroded, covered in carbon buildup, or physically damaged.

Installation Tips

  • Disconnect all electrical power to the furnace before beginning service.
  • Handle the new sensor by its ceramic base; avoid touching the metal rod with bare hands as skin oils can cause premature failure.
  • Ensure the single mounting screw is secure but not overtightened to avoid cracking the ceramic.
  • Position the sensor so the metal rod is properly enveloped by the burner flame during operation.
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  • WIDE COMPATIBILITY

    WIDE COMPATIBILITY

    Compatible with many models of Lennox, Ducane and Armstrong Furnaces
  • DURABLE MATERIAL

    DURABLE MATERIAL

    This part is made of high-quality metal material with ceramic porcelain for superior conductivity and high reliability.
  • SAVING SOLUTION

    SAVING SOLUTION

    Enjoy the great feeling when your furnace is repaired and works properly like before, BlueStars brings DIY solutions to help you deal with any trouble
  • IMPORTANT NOTE

    IMPORTANT NOTE

    This is a replacement part designed to be compatible with certain appliances. Any brand names mentioned are used solely to indicate compatibility.
CONNECTING LIVES, ENERGIZING MOMENTS

CONNECTING LIVES, ENERGIZING MOMENTS

Brand Model Number
G40DF / G40UH 45, 45X, 70, 70X, 90, 90X, 110, 110X, 135, 155
G41UF 45, 70, 90, 110, 135
G43UF 45, 70, 90, 90H, 110, 110H, 135; (G50DF) 45, 45X, 70, 70X, 90, 90X, 110, 110X, 135
G50UH 45, 45X, 70, 70X, 90, 90X, 110, 110X, 135, 155, I70, I70X, I90, I90X, I110, I110X, I135
G50UHI I70, I70X, I90, I90X, I110, I110X, I135
G51MP 45, 70, 90, 110, 135
G60DF 45, 45X, 70, 70X, 90, 110, 135, V70, V70X, V90, V90X, V110, V110X, V135
G60DFV V70, V70X, V90, V90X, V110, V110X, V135
G60UH 45, 45X, 70, 70X, 90, 90X, 110, 110X, 135, V70, V70X, V90, V90X, V110, V110X, V135
G60UHV V70, V70X, V90, V90X, V110, V110X, V135
61MP 45, 70, 90, 110, 135, V45, V70, V90, V91, V110, V111, V135
61MPV V45, V70, V71, V90, V91, V110, V111, V135
Manufacturer
‎BlueStars
Part Number
‎sdgds
Item Weight
‎0.317 ounces
Style
‎PO2
Power Source
‎NO
Included Components
‎NO
Batteries Included?
‎No
Batteries Required?
‎No
Warranty Description
‎lifetime