Functional Devices RIBMNLB-6 Logic Board 318423-701 or a failing blower motor

or a failing blower motor before replacing the switch

As a specialized furnace draft inducer switch

this cable is engineered to withstand extreme thermal cycling and resist voltage leakage that often causes intermittent flame fail ignition codes

The P545NCB-22 is rated for a maximum working pressure of 100 PSI

providing the reliable pressure drop required for optimized heat transfer

Functional Devices RIBMNLB-6 Logic Board 318423-701 or a failing blower motorThe Functional Devices RIBMNLB 6 is a 6 input logic board designed for high reliability AHU fan safety alarm circuits and general purpose logic applications. This track mount device streamlines complex relay logic by integrating six normally closed (N C) inputs that control a single master relay. When any of the monitored inputs openwhether from a low temperature alarm, smoke detector, or high pressure switchthe master relay trips, providing an