3-Inch Probe: Optimized insertion length for accurate sensing in the supply plenum or heat exchanger housing

minimizing product waste and clumping

Common Questions Is the B1420601 clip compatible with all Goodman furnaces

Complete Hardware Set: Includes a high-tension regulator spring

replacing the flame sensor gasket during every electrode inspection is standard best practice to avoid intermittent flame rectification failures and "hard lockout" error codes

Lennox 49M84 Flame Sensor 3-Inch Probe: Optimized insertion lengthThe Lennox 49M84 Flame Sensor is a critical OEM replacement part designed for precision flame rectification in gas fired heating systems. Engineered for high temperature resilience, this L Bend style sensor monitors the burner's flame status, transmitting a DC microamp signal to the integrated furnace control to ensure safe and continuous operation. A failing 49M84 is often the culprit when a furnace cycles through several ignition attempts before a