In cooling mode

While a temporary jumper may be used by a qualified technician during furnace troubleshooting to isolate the fault

Single Throw) configuration essentially serving as a thermal fuse link

Applying AC voltage will lead to insufficient magnetic flux or coil burnout due to impedance differences

It serves as the authorized successor to legacy part numbers 11112201

Williams P623513 Control Board 322838-753 In cooling modeField proven and reliable, the Williams P623513 Control Board serves as the central logic unit for high efficiency Williams furnace systems. As an essential OEM furnace replacement part, this integrated furnace control board (IFC) manages the complex sequence of operations required for safe and effective combustion. It precisely regulates the inducer motor, directs the ignition control timing for the hot surface igniter, and manages the blower motor