The Nordyne 920916A 2-Stage Control Board G7 is a replacement electronic control board designed for compatible Nordyne HVAC systems. It manages and coordinates key heating system functions, including two-stage heating operation, by processing thermostat signals and controlling connected components according to the required heat demand. Used in compatible Nordyne furnaces and related h... https://www.partshnc.com/nordyne-920916a-2-stage-control-board-g7