The Rheem-Ruud 47-100436-05 Control Board is a vital component for HVAC systems, designed to manage and coordinate system operations. It regulates key functions, including blower motor speed, thermostat signals, and heat control, ensuring optimal performance. This control board is compatible with select Rheem and Ruud heating and cooling units. By improving system efficiency and relia... https://www.partshnc.com/47-100436-05-rheem-oem-replacement-furnace-control