Replacing the CNT1537 typically restores proper sequencing

flush-mount installation into the pilot burner assembly

The assembly typically includes the necessary hardware to secure the hub to the venter motor shaft

maintaining consistent CFM delivery even in demanding commercial or residential environments

if your motor rotates CW

Lennox 22W68 Limit Switch 321702-401 Replacing the CNT1537 typically restoresThe Lennox 22W68 Limit Switch is a critical safety component engineered to monitor internal plenum temperatures and prevent heat exchanger damage. This OEM Lennox replacement part is calibrated with an L165 40F temperature rating, meaning the circuit opens at 165F to interrupt the heating cycle and automatically resets once the temperature drops by 40F. Designed for high demand HVAC furnace repair and commercial rooftop units, this 165F high limit