making it an essential item for any direct vent furnace repair kit

or the motor "humming" without starting

Common Questions Is a keyway required for this specific 3/8" bore size

it features an automatic reset mechanism that restores continuity once the temperature drops to safe operating levels (typically around 120°F)

This high-impact

Reznor 125401 Sensor Lead Assembly making it an essential itemThe Reznor 125401 Sensor Lead Assembly is a critical OEM component designed for precise signal transmission between the flame sensor and the integrated ignition control board. Engineered for high temperature environments typical of industrial gas fired unit heaters, this lead wire assembly ensures minimal impedance and consistent continuity to prevent nuisance drop outs or ignition failure. When troubleshooting a Reznor unit heater that fails to