The Gree Electric Appliances 300027060636 Main Board is an electronic control board designed to manage and regulate system operations in Gree air conditioning units. It interprets signals from temperature sensors and user controls to coordinate the compressor, fan motors, and other critical components for precise performance. Commonly used in ductless mini-split and residential HVAC s... https://www.partshnc.com/300027060636-gree-main-board