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

This electronic control board regulates power and coordinates your appliance's operations. Replacing a failed board can restore reliable performance when the unit is unresponsive, behaves erratically, or repeatedly shows error conditions.

• Regulates and distributes power to key components per the control logic
• Processes signals from sensors and user controls to execute functions
• Coordinates timing and operation of cycles/features
• Common failure signs include: won't power on or start, unresponsive controls, intermittent shutdowns, blank/flickering indicators, or recurring error codes

• Disconnect power before servicing; verify no voltage is present
• Use ESD protection and handle the board by its edges
• Photograph wiring and move connectors one at a time to the matching keyed terminals
• Mounting points and setup can vary; some models may require service-mode checks or initialization after installation