Dishwashers

LG Dishwasher Control Board Replacement Guide

The control board acts as the 'brain' of the dishwasher, managing all cycles, functions, and component operations based on user selections.

AGM76429511 Dishwasher Main Control Board (OEM) by Part Supply House
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AGM76429511 Dishwasher Main Control Board (OEM) by Part Supply House

  • AGM76429511
  • Compatible with LG
  • Brand New OEM Dishwasher Main Control Board
  • Replaces part numbers: EBR79609805, EBR79609803
  • Item is a genuine LG part
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What the AGM76429511 does

The control board acts as the 'brain' of the dishwasher, managing all cycles, functions, and component operations based on user selections.

Symptoms when this part fails

  • Dishwasher won't start
  • Incorrect wash cycles
  • Buttons unresponsive
  • Error codes displayed
  • Lights flashing erratically

Compatibility

Fits the LG family. Specifically:

  • Any unit originally equipped with OEM part number(s): EBR79609805, EBR79609803.
  • Check the model/rating plate inside your appliance and compare it against the fitment table on the product listing before ordering — this guide does not list specific compatible models because Amazon does not provide verified fitment data through this pipeline.

Also replaces: EBR79609805, EBR79609803

Tools you'll need

  • Screwdriver (Phillips and flathead)
  • Pliers
  • Nut driver
  • Work gloves

Difficulty: Moderate · Time: 45-90 minutes

How to install the AGM76429511, step by step

  1. Disconnect dishwasher from power supply.
  2. Turn off water supply to the dishwasher.
  3. Access the control board panel.
  4. Disconnect all wiring harnesses and connectors.
  5. Remove mounting screws for the old control board.
  6. Install the new control board and secure with screws.
  7. Reconnect all wiring harnesses.
  8. Reassemble the control panel and restore power.

Related troubleshooting

If swapping this part doesn't fix the issue, check these next:

Disclaimer: This guide is for informational and educational purposes only. Always disconnect power before working on appliances. If you're not comfortable with any step, call a qualified appliance technician.
The Appliance Aid Team

Researched and written by the Appliance Aid Team. We work from manufacturer service documentation, parts specifications and owner reports — not hands-on repairs. How we pick products.