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Description
52W29 Furnace Flame Sensor Replacement - For Lennox Armstrong & Ducane Furnaces52W29 Furnace Flame Sensor Key Features Monitors burner flame to ensure safe furnace operation. Direct replacement for the original manufacturer's part. Overall length: 5. 25 inches. Sensing rod length: 2. 75 inches. Constructed with a high temperature resistant metal rod and ceramic insulator. Replaces Cross Reference Part Numbers 52W29 52W2901 31L71 31L7101 LB 74940A 28PV41 903600 FLS52W29 Compatibility & Fitment Fits specific gas furnace models
52W29 Furnace Flame Sensor
Key Features
- Monitors burner flame to ensure safe furnace operation.
- Direct replacement for the original manufacturer's part.
- Overall length: 5.25 inches.
- Sensing rod length: 2.75 inches.
- Constructed with a high-temperature resistant metal rod and ceramic insulator.
Replaces / Cross-Reference Part Numbers
- 52W29
- 52W2901
- 31L71
- 31L7101
- LB-74940A
- 28PV41
- 903600
- FLS52W29
Compatibility & Fitment
- Fits specific gas furnace models from Lennox, Armstrong, and Ducane.
- Compatible with furnace series including G40, G41, G50, G51, G60, G61, and G71.
When to Replace
- Furnace ignites but shuts down after a few seconds.
- Furnace fails to heat consistently or at all.
- The sensor rod is visibly corroded, cracked, or has heavy carbon buildup that cannot be cleaned.
Installation Tips
- Disconnect all electrical power to the furnace before servicing.
- Handle the component by its metal bracket to avoid damaging the ceramic insulator.
- Ensure the sensor rod is properly positioned in the flame path for correct operation.
- Verify a secure wire connection before restoring power.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
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- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.6 ★★★★★
Based on 6 reviews
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Product Reviews
★★★★★ 5
Encouraged and Empowered
Format: Paperback
The Miracle Code is a Holy Spirit anointed book by Becky Dvorak. This book has you journey with Jesus to reveal His undoubted love for all mankind. It allows you to soak in each message ("code") of these 37 scriptures supported miracles performed by Jesus, and every miracle demonstrates a repeatable spiritual pattern ("code"). It will compassionately encourage and empower you to activate your miracle through these "codes" and put your faith for healing and miracles into action. I give it 5 stars.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 3, 2026
★★★★★ 5
Faith stirring
Format: Paperback
Author Becky Dvorak digs deep into familiar bible scriptures and decodes the hidden truths behind the 37 recorded miracles of Jesus. This book shines a light on the person of Jesus, who he really was and why he came to the earth in the first place. A must read for every believer.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 4, 2026
★★★★★ 5
The Miracle Code is a must read
Format: Paperback
I own every book that Becky has written and can say this newest book “The Miracle Code” is also superb. Words cannot describe the wealth of revelation that Becky brings forth in examining the Miracles of Jesus! This is a must read which will strengthen your faith.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 4, 2026
★★★★★ 5
Excellent book!
Format: Paperback
Needed for the times we are living in!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 28, 2026
★★★★★ 5
Excellent
Format: Paperback
A great book. It’s on the mark! You won’t be disappointed!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 12, 2026
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