How to replace LG dishwasher flow sensor assembly 6501DD2001A

On an LG dishwasher, the flow sensor assembly monitors the amount of water entering the machine so the correct water level can be maintained during the wash cycles.

You might need to replace the flow sensor assembly if the dishwasher isn’t filling with enough water or filling with too much water and potentially overflowing. Cycles may not be starting due to water level issues, or you might see an error code displayed that’s related to the water flow or water level.

You can find a replacement sensor assembly 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 flow sensor 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 Install a Dishwasher

Check part compatibility

Before you replace the flow sensor 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 flow sensor assembly is compatible with your model.

Read more: What cycle should I run my dishwasher on?

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 eliminating any risk of electric shock.
• If the appliance has recently been used, give it plenty of time to cool down before working on it.
• 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.
• 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 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.
• Always take photos or make a note of wiring terminals or other connections before disconnecting them to make reassembly easier.

How to change out the flow sensor assembly

Replace a faulty flow sensor assembly on an LG dishwasher by following these steps.

1. Unplug the dishwasher from the power outlet.
2. Shut off the water supply to the dishwasher.
3. Remove the dishwasher from the cabinet by removing any mounting brackets and pulling it out.
4. Open the door and remove both the upper and lower dish racks.
5. Unscrew the air brake inlet nut. Close the door and use tape to secure the mounting brackets in place.
6. Lean the dishwasher back to access the bottom.
7. Remove the screws that secure the bottom access plate and pull the plate free.
8. Detach the water flow sensor connector. Lift the air brake inlet to access the flow sensor.
9. Use a small flathead screwdriver to disconnect the old sensor from the air brake inlet.
10. Install the new water flow sensor by snapping it into place on the air brake inlet. Connect it to the wire connector.
11. Replace the bottom access plate and secure it with the screws.
12. Return the dishwasher to its upright position.
13. Remove the tape that secures the mounting brackets.
14. Open the door and install the air brake nut.
15. Replace both the upper and lower dish racks.
16. Gently slide the dishwasher back into the cabinet. Adjust the leveling legs if necessary.
17. Replace the screws to secure the mounting brackets to the cabinet or countertop.
18. Feed the drain hose through the cabinet and connect it to the sink drain or disposer. Make sure the hose is elevated above the connection point.
19. Reconnect the water supply line to the inlet valve.
20. Turn on the water supply and restore power to the dishwasher.
21. Run a test cycle to check for any problems.

Read more: How to Clean a Dishwasher

Additional information

Thanks for reading! We hope this guide helped you replace the flow sensor 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.

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