Manufacturer Name: GREE Product Number: 30138000310 OEM Part Number: 30138000310 Product Description: Main Control Board Weight:4.84lbs/2195.39g The Gree 30138000310 Main Control Board, available at PartsHnC, is the central processing unit for compatible Gree HVAC systems. This essential component acts as the "brain," receiving and interpreting signals from the thermostat. ... https://www.partshnc.com/30138000310-gree-main-control-board