How to replace LG dishwasher main power control board assembly EBR33469404

The main power control board assembly in an LG dishwasher is responsible for managing and distributing electricity to various parts according to the selected cycle and options. It allows your dishwasher to perform its cycles with the appropriate settings for washing, drying, etc.

You might need to replace the main power control board assembly if the dishwasher won’t start, displays a related error code, or loses some or all of its functionality.

You can find a replacement main power control board assembly EBR33469404 here. If you need other replacement parts for your LG dishwasher, just enter your model number at AppliancePartsPros.com to find them. It’s that easy! Most orders arrive in just two business days, and we have thousands of guides to show you how to install your new parts.

Disclaimer: The part replacement information provided in this article may not apply to your specific appliance model. While we strive to offer helpful advice for DIY appliance repairs, variations in models and configurations can lead to differences in troubleshooting steps, error codes and part replacements. For the most accurate guidance, we strongly recommend consulting the technical sheet for your specific appliance model.

What you need

• Replacement main power control board assembly (make sure it’s compatible with your model before installing)
• Phillips screwdriver
• Flathead screwdriver
• Adjustable wrench
• Pliers
• Tape
• Towels

Disclaimer: The specific tools required may vary depending on the model of your appliance and the type of fasteners used on it. Always consult the user manual or refer to any specific instructions provided by the manufacturer for the recommended tools for your appliance model.

Read more:  How to Clean a Dishwasher

Before you install: Check part compatibility

Before you replace the main power control board assembly, make sure you have an OEM part that’s compatible with your specific LG dishwasher model. To do this, you’ll need to find the appliance model number.

The model number will say MOD or Model before the numbers and is typically found on a sticker or a metal plate in one of the following locations:

• On the side panel or the door frame
• On the back or bottom of the dishwasher
• On the control panel or console

Once you’ve found the model number, write it down or take a clear photo of it for reference.

Next, visit AppliancePartsPros.com, where you can enter your model number to check if the main power control board assembly is compatible with your model.

Read more:  How to Wash Dishes: By Hand or By Dishwasher

Safety precautions

When working on any appliance, remember to keep safety first. Here are some tips to keep in mind:

• Always power off and unplug your appliance or switch off the circuit breaker before you attempt any maintenance or replacement work. This keeps you safe by preventing any risk of electric shock.
• Turn off the water supply at the outlet before beginning repairs. Keep towels ready to catch any residual water in the system when removing parts.
• If the appliance has recently been used, give it plenty of time to cool down before working on it.
• Take your time while working to prevent accidents and personal injuries. Rushing is the enemy of precision.
• Work in a well-lit area so you can clearly see and access appliance parts.
• Keep your workspace free of clutter and other obstacles. Keep children and pets away from the work area.
• Never work on internal parts with wet hands. Make sure the work area is completely dry.
• Check the user manual to see if there are specific installation or safety instructions related to your appliance or replacement part.
• Be gentle when handling or removing parts. Excessive force might damage the appliance or cause personal injury.
• Wear insulated work gloves to protect your hands from sharp metal parts and debris.
• When working with wires, avoid touching any exposed wires or terminals. If you need to touch a wire, use a non-conductive tool or wear insulating gloves to prevent electrical shock.
• Consider wearing safety glasses and/or a dust mask when working with chemicals, dust or a large amount of debris to prevent irritation or injury.

How to replace the main power control board assembly

1. Turn off the dishwasher and unplug it from the power supply.
2. Disconnect the water supply to the dishwasher.
3. Open the dishwasher door.
4. Remove the screws that hold the outer door panel.
5. Carefully pull the outer door panel off.
6. Remove the screws that hold the control panel in place.
7. Take a photo or note the orientation of the control board wires.
8. Disconnect the wire harnesses connected to the display board, the light display wire harness and the power switch connector.
9. Disconnect the rest of the wires from the main control.
10. Remove the screws that secure the control board to the panel.
11. Depress the tabs to release and pull out the old control board.
12. Install the new control board by aligning it on the panel and snapping it into place.
13. Secure the new board with screws.
14. Reconnect all of the control board wires and secure them with the retainers to prevent any loose connections.
15. Reconnect the power switch connector, the light display wire harness, and the display board wire harnesses.
16. Reposition the control panel and secure it with the screws.
17. Reinstall the outer door panel.
18. Align the slots in the panel with the tabs on the bottom of the control panel.
19. Secure the panel with the screws.
20. Plug the dishwasher back in.
21. Turn on the water supply to the dishwasher and turn it on.
22. Run a test cycle to check for any lingering problems.

Read more: What is Dishwasher Insulation and Why is it Important?

Additional information

Thanks for reading! We hope this guide helped you replace the main power control board assembly on your LG dishwasher.

If you still need some replacement parts, grab your model number and head over to AppliancePartsPros.com. We offer over two million parts and most orders arrive in two business days. If you need some help with finding the right part or placing an order, you can contact our team at 1 (877) 477-7278.

While you’re waiting for your new part to arrive, you can explore our DIY blog and watch thousands of video tutorials on our YouTube channel. We can also help you troubleshoot common dishwasher problems here.

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