Parts for Lg LRG3093ST/00: Controller Parts

This Main PCB manages and coordinates the appliance's electronic functions so your unit responds to user controls, runs selected cycles, and displays status. Replacing a failed board restores proper control and communication. What it does:

• Interprets user inputs and sends signals to motors, valves, heaters, and displays
• Controls timing and cycle sequencing to run selected operations
• Communicates error codes and status to the user interface
• Stops operation or prevents starts when critical faults are detected
• Corrects symptoms caused by intermittent or complete control failure

• Disconnect power at the breaker and unplug the appliance before starting
• Take photos of wiring and connectors to ensure correct reconnection
• Handle the board carefully; avoid static discharge and bent pins

This PCB assembly replaces the appliance's main electronic control board to restore reliable control of functions and user interface. It handles the unit's logic and electrical signals so the appliance can operate correctly. What it does:

• Manages electronic controls and timing signals for the appliance
• Enables display, keypad, and user-interface communication
• Controls outputs for motors, valves, relays and other powered circuits
• Helps resolve intermittent operation, unresponsive controls, or error-code behavior
• Restores proper function when faulty electronics prevent normal operation

• Disconnect power before starting — risk of shock or damage
• Handle the board by the edges and avoid static discharge (use gloves or a grounding strap)
• Keep track of mounting screws and connector orientation for reassembly

A circular lug designed to join a stripped wire to a threaded terminal for a secure electrical connection. Helps restore reliable contact at terminals and reduces the chance of intermittent power or arcing at connection points. What it does:

• Provides a strong mechanical and electrical connection between a wire and a screw or bolt terminal.
• Helps prevent loose connections that can cause intermittent operation, sparking, or overheating.
• Commonly used where a ring-style termination is required for safe, stable wiring.
• Works with properly sized wire and fasteners to maintain consistent conductivity.

• Always disconnect power to the appliance before inspecting or replacing electrical parts.
• Use the correct lug size and gauge for the wire and terminal; crimp or solder per manufacturer recommendations.
• Tighten terminal hardware to the appliance manufacturer's specified torque; avoid over-tightening which can damage the lug or terminal.
• If wiring insulation or the terminal is damaged or corroded, replace the affected components rather than reusing them.