GREE 301385711 Main Control Board is a critical electronic component designed to regulate and coordinate the operation of Gree HVAC systems. It functions as the central processor, managing communication between sensors, compressors, fans, and other internal components to ensure precise temperature control and system efficiency. Commonly used in Gree air conditioners and heat pump unit... https://www.partshnc.com/301385711-gree-main-control-board