Replacement MAIN-120S2 / MAIN-120S2(OUT) Main PCB Control Board for KFR-120W/S-570L Air Conditioner

Compatible replacement motherboard for air conditioners: MAIN-120S2 and MAIN-120S2(OUT). This PC board control board is intended for use in KFR-120W/S-570L units and serves as the main control PCB for the system. Install to replace a faulty MAIN-120S2 series board and restore central control and communication functions. Sold as the main control/PC board for the specified models.