Lg Dishwasher LDS5811BB-01 Touchpad does not respond

This main control board manages the appliance's core electrical functions and power delivery, restoring control over cycles, display, and compressor operation when the original PCB fails. Designed as a direct-replacement control module for the appliance. What it does:

• Regulates and routes power to the appliance's motors, compressor, valves and user interface.
• Processes user inputs and runs programmed cycles so buttons, lights and displays respond correctly.
• Can stop unwanted behavior such as no power, unresponsive controls, or intermittent operation when the PCB is at fault.
• Resolve issues caused by burned traces, failed relays or damaged components on the original board.

• One main control board (power PCB assembly) as shown.

• Only install with the appliance unplugged and service power disconnected; verify mains are off before touching the board.
• Handle the PCB by its edges and avoid ESD-sensitive contact — use an anti-static strap if available.
• Connectors are fully seated and routing matches the original; secure mounting to prevent vibration.