Customer Questions and Answers for Power Control Board (Main Pcb) by Lg

This power control board is the appliance's main electronic PCB. It manages power distribution and control logic, coordinating sensors and user inputs so the unit's motors, fans, heaters, and valves run when they should. What it does:

• Distributes and regulates power to key components through onboard relays
• Processes sensor feedback and timing to execute programmed operations
• Coordinates operation of motors, fans, heaters, and valves as required
• Common failure symptoms: unit won't power on or start, unresponsive controls/display, intermittent or erratic operation, repeated clicking from the control area, or error codes

• 1 electronic control board assembly

• Disconnect power before servicing; verify power is off
• Use ESD protection and handle the board by the edges
• Photograph/label connectors and transfer plugs one at a time, ensuring proper seating and orientation
• Secure the board, reassemble covers, restore power, and verify normal operation