The General Electric WR55X40445 Refrigerator Stainless Steel T Main Board SxS regulates essential refrigerator functions to support reliable system operation. This replacement main control board is an electronic component that manages communication between key parts, including the compressor, fans, defrost system, and temperature sensors. It operates by processing input signals from c... https://www.hnkparts.com/wr55x40445-general-electric-board-t-main-sxs-ss