This sensor interfaces directly with the defrost control board to signal the reversing valve and outdoor fan motor operations

the spark may jump to the chassis instead of the burner

providing reliable emergency safety relief for commercial and residential boilers

or obstructed ductwork causing the plenum to exceed 160°F

Key Benefits: Precision OEM Fit: Designed as a direct-fit outer burner tube to minimize installation time and eliminate the risk associated with universal aftermarket components

Lennox 41W50 Blower Motor 340155-7026 This sensor interfaces directly withThe Lennox 41W50 Blower Motor is a heavy duty, 3 speed PSC replacement motor designed for critical airflow applications in residential and light commercial HVAC systems. This 1 4 HP blower motor operates at 240V (single phase) with a rated speed of 825 RPM, delivering the high torque performance necessary for consistent static pressure management. Featuring a 48Y frame and a 1 2" x 4" single side flat shaft, the 41W50 is a direct OEM replacement part