this bimetal thermal sensor prevents the blower motor from cycling indefinitely and protects against cracks in the heat exchanger assembly

the M611B-1 is specifically designed for negative pressure burners

5-inch inlet and a standard four-point mounting pattern used across most Carrier forced air parts in this series

This 1/2" bimetal disc limit switch features a 7

York S1-031-09125-000 Control Board 322838-754 this bimetal thermal sensor preventsFor technicians servicing high efficiency rooftop units and split systems, the York S1 031 09125 000 Intelli Comfort Control Board is the definitive OEM replacement to restore precise logic control and system sequencing. Designed for seamless integration with York HVAC systems, this board manages critical functions including inducer motor timing, ignition control sequences, and blower speed modulation. As a genuine York replacement part, it ensures