The LG EBR81634405 Washer Power Control Board PCB Assembly regulates electrical power and manages essential operating functions of the washing machine. This electronic component processes signals from the washer’s control system and distributes power to connected components according to the selected wash settings. Installed inside the appliance’s electrical control area, the board coordinates operations such as motor activity and wash cycle execution, depending on the model design. Proper operation of this assembly supports consistent cycle performance and communication between electrical components. Replacing a damaged board can restore power management and normal washer operation. This part is designed for compatible washer models, so checking the appliance model number before installation helps ensure proper fit and electrical compatibility.