this genuine Lennox replacement part restores factory-spec thermal protection and system efficiency

this 5-foot tube allows for 2/3 duct coverage in larger air handlers

What causes a thermopile to stop generating voltage

Safety Integration: Works in tandem with the gas valve to confirm the presence of a pilot flame before allowing main gas flow

Circuit Identification: Features a distinct yellow stripe on a black base for fast troubleshooting in pneumatic systems

Honeywell 220736A Internal Auxiliary Switch Els PW 17895 this genuine Lennox replacement partThe Honeywell 220736A is a precision engineered Internal Auxiliary Switch designed for integration within Honeywell Modutrol IV motors. This single pole, double throw (SPDT) switch provides critical feedback loops and auxiliary control for HVAC damper actuators and valve linkages. Functionally identical to the 220736A U, this component allows contractors to trigger external equipment such as fans, pumps, or pilot lights based on the motor's shaft