Lennox 21L99 Flame Sensor – Reliable Flame Detection for Efficient Heating

 

Product Depth: 1.62 IN

Product Height: 1.15 IN

Product Width: 3.1 IN

Type: Flame Sensor

Diameter: 0.365 IN

Gross Weight: 0.05 LB

Type: Flame Sensor

Additional Information: (Dia x L): 0.114 x 2.21" Senso

 

Ensure consistent and safe furnace operation with the Lennox 21L99 Flame Sensor, an OEM replacement part engineered for accurate flame detection in compatible Lennox heating systems. This high-quality sensor monitors the burner flame during operation, helping to prevent ignition failures and improve overall system reliability.

Designed specifically for Lennox furnaces, the 21L99 sensor is built with durable materials to withstand high temperatures and maintain optimal performance over time. If your furnace is experiencing intermittent ignition issues or short cycling, replacing the flame sensor may restore proper function quickly and affordably.

Key Features:

Genuine Lennox OEM part for guaranteed compatibility

Detects presence of burner flame to ensure safe operation

Helps prevent ignition lockout and unnecessary system shutdowns

Easy to install with basic tools

Ideal for routine maintenance or repairs

Choose the Lennox 21L99 Flame Sensor to maintain the efficiency and safety of your heating system. Available now at Beenimax.com – your trusted source for genuine HVAC replacement parts.