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Your cart is empty.Product Description
Functionality: Burner flame sensor 69W43 detects when the burner flame has ignited and sends a signal to the control board to stop the igniter from operating.
Premium Quality
It is made of high-grade materials and is durable enough to prevent breakage and damage during installation and use.
Easy To Install
This item is easy to install at home, you can spend 20-30 minutes on YouTube or TikTok to watch the installation tutorial.
Fits Part Number
This Flame Sensor Compatible with Lennox, Armstrong, Ducane Units.Replaces 69W4301, LB-74940B.
NOTE
- Confirm your original part number before you order.
- The product is not sponsored or endorsed by ,or affiliated with the brands it fit ,including Lennox, Armstrong, Ducane Units.
Yuki Johnson
2025-07-03 14:14:29
Worked perfectly. Fit perfectly. Can't beat perfect.
M. Davis
2025-06-24 13:17:20
Got lucky, it fit and works!
skindy
2025-05-19 18:49:09
Perfect fit
Lex5000
2025-03-10 16:37:18
Fixed the furnace issue like a charm.
Vectorspace
2025-02-10 10:31:17
What can you say about a thermocouple. It works. It has been working for a year. I have two spares pinned to the wall next to the furnace for when it might fail in the future.
eduardo
2025-01-27 15:26:41
Unit was kicking on for 5sec and turning off. Cleaned sensor, still no change. Ordered part overnight shipping. Easy repair, save yourself a ton of money and do it yourself.
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