Ensure reliable furnace operation with the Lennox 49M84 (49M8401) Flame Sensor—a critical safety component designed to detect the presence of a burner flame during the heating cycle. This OEM flame sensor helps prevent unburned gas buildup by shutting down the system if a flame isn’t detected, making it essential for maintaining safe and efficient furnace performance.

Compatible with select Lennox gas furnaces, the 49M84 features durable construction for long-lasting service and dependable flame detection. Whether you're performing a replacement or a routine maintenance upgrade, this sensor restores proper operation and helps avoid ignition-related issues.

Key Features:

Genuine Lennox OEM replacement part

Detects burner flame for safe furnace operation

Helps prevent ignition failure and system lockout

Durable build ensures consistent performance

Easy to install with proper fit for compatible models

Trust Beenimax.com for authentic Lennox components—recommended by professionals for dependable HVAC repairs and system longevity.