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

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Manufacturer Part
4.89 (64)
By: Lg
Part Number: OEM18958518
Manufacturer Part Number: EBR85103101

This main control board is the electronic brain of your appliance. It supplies regulated power and coordinates sensors, user inputs, and components so cycles run correctly—restoring dependable operation when the original board fails.

  • Distributes and regulates power to key components
  • Interprets signals from sensors and the user interface
  • Executes operating logic, timing, and safety routines
  • Typical failure symptoms: no power, won't start, dead/flickering display, relay clicking, erratic cycling, or error codes traced to the main PCB
What's included: One main control board Install notes:
  • Disconnect power before servicing; handle the PCB by the edges and follow ESD precautions
  • Photograph wire/connector locations; transfer any jumpers/spacers from the original board if present
  • Seat connectors fully and mount the board securely to prevent shorts or vibration
  • Some models require control initialization or service-mode steps after installation—refer to the service manual

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Questions & Answers

For Lg Main Control Board (Pcb Assembly) (Part Number: OEM18958518)

1 Answer

Randal, if the display is accepting program selections and operating properly aside from the LEDs, the failure would be in the main control EBR85103101.

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