TEKPRO 69W43 Flame Sensor Lennox Furnace Igniter Sensing Rod 4301 850053886430 LB-74940B

( Brand: Tekpro ), ( Model: 69 43 69 4301 74940 74940 ), ( Part Type: Sensor Furnace ), ( Itemheight: 15 ), ( Itemlength: 135 ), ( Itemwidth: 33 ), ( Packagelength: 148 ), ( Packageweight: 20 ), ( Manufacturer Part Number: 69W43 69W4301 LB-74940B LB74940B ), ( UPC: 850053886430 )

Review TEKPRO Flame Sensor Lennox Furnace Igniter Sensing Rod Fit

Introducing the Tekpro 850053886430 69w43 Flame Sensor, a crucial component for maintaining optimal performance in Lennox furnaces. Designed specifically for Lennox igniter assemblies, this flame sensor is engineered to ensure efficient and reliable ignition.

The heart of this sensor is its high-quality ceramic element, which is responsible for detecting the presence of a flame. This element is coated with a sensitive material that changes resistance when a flame is present, allowing the furnace control board to detect the flame and continue the ignition process. The sensor housing is constructed of durable materials, ensuring longevity and resistance to high temperatures.

The Tekpro 850053886430 69w43 Flame Sensor features a compact design, making it a perfect fit for most Lennox furnaces. Its easy-to-install design allows for quick replacement, minimizing downtime and ensuring that your heating system remains operational. The sensor comes with a detailed installation guide, making the process straightforward even for those with little experience.

The sensor's design also includes a built-in test function, enabling users to easily check the sensor's functionality. This feature allows users to quickly identify any issues and replace the sensor if necessary, preventing potential safety hazards and ensuring the continued performance of the heating system.

The Tekpro 850053886430 69w43 Flame Sensor is an essential component for maintaining the safety and efficiency of your Lennox furnace. Its high-quality construction, easy installation, and reliable performance make it an ideal choice for homeowners and professionals alike. Whether you're looking to replace a worn-out sensor or prevent potential issues, this flame sensor is the perfect solution.

The Tekpro 850053886430 69w43 Flame Sensor for Lennox furnace is a crucial component for maintaining proper ignition and safety in your furnace system. Here are some potential pros and cons to consider before making a purchase.

1. Compatibility: This flame sensor is specifically designed for use with Lennox furnaces, ensuring a reliable fit and function.

2. Replacement: If your current flame sensor has worn out or malfunctioned, replacing it with a new one like the Tekpro 850053886430 can help restore proper ignition and safety to your furnace.

3. Availability: The Tekpro 850053886430 is widely available through various online retailers and home improvement stores, making it a convenient option for those who need a replacement quickly.

1. Cost: Compared to other replacement parts for furnaces, the Tekpro 850053886430 may seem expensive to some homeowners.

2. Installation: While the replacement process for a flame sensor is generally straightforward, it may require some basic technical skills and knowledge. Homeowners without experience in furnace repair may need to hire a professional to install the sensor.

In conclusion, the Tekpro 850053886430 69w43 Flame Sensor for Lennox furnaces can be a valuable investment for maintaining the safety and efficiency of your heating system. Its compatibility with Lennox furnaces and availability make it a convenient option for homeowners who need a replacement. However, its cost and potential installation challenges may be drawbacks for some homeowners. Ultimately, the decision to purchase this flame sensor depends on your individual circumstances and priorities. If you are comfortable with the installation process and understand the cost, this sensor can be a worthwhile investment for ensuring the proper functioning of your furnace.

Details:

Heat Sensor Replaces OEM part number #69W43, 69W4301, LB-74940B, LB74940B. Flame Sensor for Lennox Furnace Dimension - 5.3 in length and 90 degree crook on end approximate 1.3. Flame Sensor Igniter High Quality - alumina ceramic insulator and high temperature flame rod material ensure its heat corrosion resistance. Flame sensor 69W43 is fit for Lennox/Duane/Armstrong furnaces, including Lennox ML18UH EL180 ml180uh090p36b-55 and Duncan 80G1DF070AP12.

Shipping:: Shipping is complimentary within the lower 48 US States. Product Features: The most common reasons for replacing the flame sensor are when furnace doesn heat or runs only a few minutes.

specifications aerationaura:

• brand: Tekpro
• model#: 69 43 69 4301 74940 74940
• part type: Sensor Furnace
• itemheight: 15
• itemlength: 135
• itemwidth: 33
• packagelength: 148
• packageweight: 20
• manufacturer part number: 69W43 69W4301 LB-74940B LB74940B
• upc: 850053886430

shipping aerationaura:

• class: Standard
• service: Standard
• transit: 4-10 Days
• cost: $0.00
• type: Fixed

returns aerationaura:

• method: Money back
• policy: Returns Accepted
• paid by: Buyer
• time: 30 Days

offer aerationaura:

• options: Ship-to-home
• quantity: 1
• started: December 23, 2025
• sold: 0
• availability: In Stock

general aerationaura:

• Home Improvement > Heating, Cooling Air > Other Heating, Cooling Air
• condition: New

payments aerationaura:

• wallet: Apple-pay
• credit card: Visa
• other

seller aerationaura:

• # reviews: 832
• city: Flushing, New York
• rating: 99.6%

Tekpro 69W43 Is Similar To:

• Brand Tekpro 74940 69w43 Flame Sensor For Lennox Furnace Igniter Sensing Rod Fit (88.5% similar) Flame sensor igniter high quality - alumina ceramic insulator and high temperature flame rod material ensure its heat corrosion resistance. 69W43 flame sensor for lennox furnace - igniter sensing rod fit Duane Armstrong and EL180 ML18UH furnaces, heat replace 69W4301 LB-74940B LB74940B 2...(September 28th, 2025)