Abelove Furnace Flame Sensor High Temp Cermet 69W43

Description

Product Overview

The Abelove 69W43 furnace flame sensor is engineered for durability and performance. Featuring a high‑temperature cermet insulator, the sensor endures rod temperatures up to 2190°F and ceramic limits of 1000°F. Its 90‑degree crook design measures approximately 1.31 inches, providing a precise fit for gas HVAC units. Included are two sensor rods, each weighing 1.13 ounces, with dimensions of 5 x 3 x 0.7 inches. This replacement part is compatible with Lennox, Armstrong, and Ducane models, substituting part numbers 69W4301, LB‑74940B, and LB74940B.

Usage

Designed for residential and light commercial heating systems, the sensor ensures safe flame detection in furnaces and boilers. Ideal for DIY homeowners, HVAC technicians, and service professionals, it can be installed in minutes without special tools, reducing downtime during maintenance. Suitable for both new installations and retrofits, it enhances system reliability in cold climates and high‑demand environments.

Why Choose Us

Abelove combines rigorous material testing with precision manufacturing to deliver a sensor that resists corrosion and thermal fatigue. Each unit undergoes a 1‑year warranty inspection, guaranteeing performance and safety. Our responsive customer support resolves issues within one business day, and detailed installation guides are provided to ensure a hassle‑free experience.

Key Features

• High‑temperature cermet construction tolerates up to 2190°F for reliable flame detection.
• 90‑degree crook design fits standard gas HVAC units without modification.
• Compatible with Lennox, Armstrong, and Ducane systems, replacing multiple OEM part numbers.
• Easy DIY installation in minutes, no batteries or tools required.
• 1‑year warranty and dedicated support for peace of mind.

FAQ

What HVAC models are compatible with the 69W43 sensor?

The sensor fits Lennox, Armstrong, and Ducane furnaces that use part numbers 69W4301, LB‑74940B, or LB74940B.

Can I install the sensor myself?

Yes, the sensor is designed for quick DIY installation. No special tools or batteries are needed; simply replace the old rod with the new one.

What is the temperature rating of the sensor?

The cermet rod withstands up to 2190°F, while the ceramic portion tolerates temperatures up to 1000°F.

Does the product include a warranty?

All Abelove flame sensors come with a 1‑year limited warranty covering manufacturing defects.

How do I get support if I encounter an issue?

Contact the seller through your Amazon order page; we respond within one business day to assist with any problems.