The LG Refrigerator EBR78643401 Main Control Board EBR78643403 is a essential part for maintaining the functionality of your LG refrigerator. This control board is designed by LG specifically for their model EBR78643403, ensuring a perfect fit and compatibility. With this replacement control board, you can expect your refrigerator to continue running smoothly and efficiently, preserving your food items at the optimal temperature. Whether your current control board is malfunctioning or you simply need a spare for future use, this LG control board is a reliable choice for your refrigerator repair needs.