The LG EBR78643401 Refrigerator Main PCB Control Board ensures stable and accurate operation by coordinating key cooling and defrost functions within the appliance. Serving as the system’s central processor, it receives input from sensors, manages compressor cycles, adjusts fan performance, and regulates temperature settings to maintain consistent internal conditions. By efficiently d... https://www.hnkparts.com/ebr78643401-lge-pcb-assy-main