Parts for Lg LRE30451SB/01: Controller Parts

This is a truss-head tapping screw used to secure trim, panels, and small assemblies on compatible LG appliances. It provides a low-profile, wide-bearing head that helps hold parts flush and resist pull-through. What it does:

• Fastens plastic and sheet-metal components where a self-tapping thread is needed
• Truss head spreads load to prevent damage to soft or thin materials
• Helps secure control panels, brackets, or trim pieces that require a low-profile head
• Common replacement when original mounting screws are missing, stripped, or corroded

• One truss-head tapping screw

• Use the correct screwdriver bit and moderate torque to avoid stripping the screw or workpiece
• Start threading straight and let the screw form threads without forcing at an angle
• Disconnect power and follow appliance-specific service safety procedures before working internally
• Replace any damaged mating threads or clips for a secure fit

Replacement sub printed circuit board that restores the appliance's electronic control functions by processing and routing signals between the user interface and other control modules, helping address unresponsive controls and erratic operation. What it does:

• Processes and routes control signals between the user interface and main control modules.
• Replaces a failed sub control board that can cause unresponsive buttons, blank or flickering displays, or intermittent operation.
• Can resolve specific feature failures or error codes tied to the sub board circuitry.
• Provides a direct OEM-design replacement to restore proper electronic control when the original board is faulty.

• Disconnect power to the appliance before accessing electrical components.
• Document or photograph connector locations before removal to ensure correct reassembly.
• Handle the board by the edges and use proper ESD precautions to avoid damage.

Power transformer that supplies low-voltage power to the appliance control board and user interface, helping restore stable voltage to control circuits for reliable operation of displays and control functions. What it does:

• Steps down incoming mains voltage to the low-voltage level required by the control board and display.
• Replaces a failed transformer that can cause blank or dim displays and unresponsive controls.
• Can address intermittent resets, failure to start, or control-board power-loss symptoms when diagnosed as the faulty component.
• Works with the main control assembly to maintain stable voltage for sensors and interface electronics.

• Disconnect power at the breaker or unplug the appliance before starting any work.
• Handle the control board and connectors carefully; document or photograph wiring locations before removal.
• Reconnect all terminals securely; verify correct orientation and insulation to avoid shorts.

This touchpad and control panel assembly restores a responsive, reliable user interface for your appliance. It provides the keypad membrane and front panel that register button presses and send commands to the electronic control.

• Provides the user interface to select functions and settings
• Membrane keypad and ribbon/connector transmit inputs to the main control
• Worn or damaged keys may cause unresponsive or intermittent buttons, stuck-key beeping, or inability to start/stop
• Cracked or damaged panel face can prevent proper button operation

• Disconnect power at the breaker or unplug the appliance before servicing
• Access the console; release the keypad ribbon by lifting the connector lock—avoid creasing the ribbon
• Transfer any brackets/trim from the original panel if required; align and secure the new panel
• Fully seat the ribbon and test all keys before final reassembly