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Ultra Durable 52W29 Furnace Flame Sensor Replacement Part by BlueStars - Compatible with Lennox, Armstrong & Ducane Furnaces - Replaces 52W2901 LB47940A 31L71 31L7101
Brand: BlueStars
Condition: Used
$1409
$2099
-33% Save $690
Updated: 3 days ago
Description
π IMPORTANT NOTE: Please check the model number carefully before ordering. You can send us your furnace model number, we can help you confirm if it fits or not. Don't hesitate to contact us if you have any concerns with your purchase, we will be here to help.
MODEL NUMBER: 52W29 Furnace Flame Sensor. The flame sensor monitors the burner to detect whether or not a flame is present. If the sensor does not detect a flame, it shuts the gas valve off, preventing raw gas from dumping into your home. Over time, a flame sensor may lose it's the ability to sense the flame, even when the flame is present.
HIGH COMPATIBILITY: It is made exactly fit for most top name brands (Lennox, Armstrong & Ducane) and replaces part numbers: 52W2901, LB47940A, 31L71, 31L7101 - Fits Most Series of Models G40, G41, G50, G51, G60, G61, and G71 Furnaces. For details, see below or if you are unsure about the compatibility, feel free to contact us and we will be happy to help you.
PREMIUM QUALITY: The replacement part is made from durable high-quality material and well-tested by the manufacturer - Meets OEM standards - Ensure long-lasting and effective performance. The total length is approximately 5.3 inches.
SAVE TIME AND SAVE MONEY: Inexpensive way to fix or repair a furnace. This part fixes the following symptom: The furnace does not heat.
100% LIFETIME PROTECTION: Enjoy reliable performance with our lifetime protection, ensuring that your product will always be covered for any defects or issues that may arise.
SPECIFICATIONS
The flame sensor monitors the burner to detect whether or not a flame is present. If the sensor does not detect a flame, it shuts the gas valve off, preventing raw gas from dumping into your home. Over time, a flame sensor may lose it's the ability to sense the flame, even when the flame is present.
Works with the following models:
- (G40DF) 45, 45X, 70, 70X, 90, 90X, 110, 110X, 135, 155 - (G40UH) 45, 45X, 70, 70X, 90, 90X, 110, 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, 135, 155, I70, I70X, I90. I90XI 110, I110X, I135
- (G50UHI) I70, I70X, I90, I90X, I110, I110X, I135
- (G51MP) 45, 70, 90, 110, 135
- (G60DF) 45, 45X, 70, 70X, 90, 110, 135, V90, V90X, V110, V110X, V135
- (G60DFV) V70, V70X, V90, V90X, V110, V110X, V135
- (G60UH) 45, 45X, 70, 70X, 90, 90X, 110, 110X, 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, V111, V135
- (61MPV) V45, V70, V71, V90, V91, V110, V111, V135
Replace part numbers: 52W2901, LB47940A, 31L71, 31L7101
Fixes the following symptoms:
The furnace does not heat
Count on our 52W29 Furnace Flame Sensor for an unrivaled mix of durability, convenient functionality, and great value for money. Click βAdd to Cartβ now!
If you are unsure our replacement part will fit your appliance model, you can ask us in Customer questions & answers section or contact us by visiting the Blue Stars LLC storefront -- click the "Blue Stars LLC" on a product page to get to the storefront -- then click the "Ask a question" link under Further Information. Select your reason, and then tell us about the question.
The flame sensor monitors the burner to detect whether or not a flame is present. If the sensor does not detect a flame, it shuts the gas valve off, preventing raw gas from dumping into your home. Over time, a flame sensor may lose it's the ability to sense the flame, even when the flame is present.
Works with the following models:
- (G40DF) 45, 45X, 70, 70X, 90, 90X, 110, 110X, 135, 155 - (G40UH) 45, 45X, 70, 70X, 90, 90X, 110, 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, 135, 155, I70, I70X, I90. I90XI 110, I110X, I135
- (G50UHI) I70, I70X, I90, I90X, I110, I110X, I135
- (G51MP) 45, 70, 90, 110, 135
- (G60DF) 45, 45X, 70, 70X, 90, 110, 135, V90, V90X, V110, V110X, V135
- (G60DFV) V70, V70X, V90, V90X, V110, V110X, V135
- (G60UH) 45, 45X, 70, 70X, 90, 90X, 110, 110X, 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, V111, V135
- (61MPV) V45, V70, V71, V90, V91, V110, V111, V135
Replace part numbers: 52W2901, LB47940A, 31L71, 31L7101
Fixes the following symptoms:
The furnace does not heat
Count on our 52W29 Furnace Flame Sensor for an unrivaled mix of durability, convenient functionality, and great value for money. Click βAdd to Cartβ now!
If you are unsure our replacement part will fit your appliance model, you can ask us in Customer questions & answers section or contact us by visiting the Blue Stars LLC storefront -- click the "Blue Stars LLC" on a product page to get to the storefront -- then click the "Ask a question" link under Further Information. Select your reason, and then tell us about the question.
Sold by
Amazon Warehouse
Official Amazon outlet for open-box & returned items
- Backed by Amazon's A-to-Z Guarantee
- 30-day return policy
- Ships from Amazon fulfillment centers
- Price verified on Amazon
Product Details
- SKU:
- awhd-ca-b07pdds4h1
- Model:
- 52W29
- Country:
- CA
- ASIN:
- B07PDDS4H1
Shopping Smarter
Common questions about buying open-box and refurbished.
Why buy refurbished or open-box?
Refurbished and open-box products offer the same performance as new at a fraction of the price. You're already saving $7 on this listing. They've been inspected, tested, and are ready to use β the only difference is the price tag. Buying refurbished also reduces electronic waste, extending product life cycles and keeping functional devices out of landfills.
What's the difference between open-box and refurbished?
Open-box products are customer returns that have been inspected and confirmed functional. They may show little to no use β often the item was returned simply because the buyer changed their mind. Refurbished products have been professionally repaired or restored by technicians, tested to meet or exceed manufacturer specifications, and sometimes come with a warranty. Both are a smart alternative to buying new.
Why use OpenBoxFox?
Finding refurbished deals is time-consuming β you'd have to check Amazon Warehouse, Reebelo, Dyson Outlet, and others separately for BlueStars products. OpenBoxFox aggregates these listings in one place, so you can compare and find the best deal without the legwork. We update pricing daily so you always see current availability and real savings.
Is it safe to buy refurbished?
Yes. Products listed on OpenBoxFox come from established retailers like Amazon, Reebelo, and Dyson β not unknown third-party sellers. Each retailer has buyer protection policies, return windows, and in some cases warranties. You get the price advantage of used goods with the purchase security of a known retailer.







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