How to replace diverter motor W10155344 in a Whirlpool dishwasher

Is your Whirlpool dishwasher not cleaning as it should or making strange noises? A worn-out diverter motor could be the culprit, disrupting water flow and potentially halting your machine. Fortunately, we’ve got you covered with clear step-by-step instructions and a handy how-to video below, so you can easily tackle this fix yourself without a hefty repair bill.

Need a part?  Search below using your appliance model number to find exactly what you need:

The diverter motor on a Whirlpool dishwasher directs water flow during different cycles of the dishwasher. Over time and with regular use, it can wear out and cause poor water distribution and a noisy machine, or even prevent the dishwasher from running altogether.

Replacing the diverter motor is a relatively straightforward process that typically takes under an hour. With the right tools and this guide, you can complete this repair yourself and avoid getting a costly professional involved.

Let’s walk through the process together so you can get your dishwasher working again.

You can find a replacement diverter motor here. If you need other replacement parts for your Whirlpool 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.

Watch here: How To: Whirlpool/KitchenAid/Maytag Diverter Motor W10155344

What is the diverter motor & why is it important?

During the wash cycle, the diverter motor activates and directs water to the spray arms. The spray arms distribute water and detergent across the dishes so they get cleaned. The diverter motor adjusts the water flow, which allows the upper and lower spray arms to rotate and reach all areas of the dishwasher.

The diverter motor also contributes to the dishwasher’s ability to offer various washing cycles. It controls water flow, which allows for the customization of cycles, such as Normal, Sanitize and Auto.

Symptoms of a faulty diverter motor include:

• Less-than-ideal dishwasher cleaning
• Reduced water pressure or no water spraying from either the upper or lower spray arm
• Unusual noises, such as grinding or buzzing sounds, during the wash cycle
• An error code related to the diverter motor or water flow issues displayed on the control panel
• Visible damage or malfunctioning of the motor, such as overheating or electrical issues

What you’ll need

• 5/8-inch open-ended wrench
• 5/16-inch nut driver
• Phillips screwdriver
• Torx 15 screwdriver
• Small flathead screwdriver
• Wire strippers
• Zip tie
• Towels or a small container
• New diverter motor (make sure it’s compatible with your specific dishwasher model before installing)

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: Must-Have Tools for Appliance Repair – DIY For Beginners

Check part compatibility

Before you replace the diverter motor, make sure you have an OEM part that’s compatible with your specific 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:

• Inside the dishwasher, on the side wall or on 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 diverter motor is compatible with your model.

Read more: How To Find Your Appliance’s Model Number

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.
• 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 see and access appliance parts.
• Keep your workspace free of clutter and other obstacles. Keep children and pets away from the work area.
• 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 replace the diverter motor

Change out the diverter motor in your Whirlpool dishwasher by following these steps.

Step 1: Remove the old diverter motor

1. Unplug the dishwasher from the power outlet.
2. Turn off the water supply to the dishwasher.
3. Open the dishwasher door and remove the lower dish rack.
4. Open the dish rack stoppers on each side to release the upper dish rack.
5. Slide out the upper dish rack and push the rails back in.
6. Turn the base of the spray arm clockwise to free it, then lift it off.
7. Remove the filter basket by turning it counterclockwise to unlock it, then lift it to take out the screen.
8. Use a Torx 15 screwdriver to remove the three screws holding the filter basket.
9. Remove the manifold with a small flat-blade screwdriver. Open the clips on the sides and top, then lift off the manifold cover.
10. Lift and remove the diffuser plate.
11. Take out the two Phillips screws that hold the dishwasher mounting brackets to the countertop.
12. Place a towel or a plastic container under the shut-off valve to catch any water. Use a 5/8 open-ended wrench to disconnect the fill water line.
13. Use a 5/16-inch nut driver to loosen the hose clamp and remove the drain hose. Be prepared to catch any remaining water in the hose.
14. Slowly pull the dishwasher out by supporting it by the frame or cabinet.
15. Close the door and set the dishwasher on its side.
16. Use a Torx 15 screwdriver to remove the two screws that hold the old diverter motor.
17. Open the clips on the motor with a flat-blade screwdriver, then remove the motor.
18. Disconnect the plugs from the old motor by pressing the tab on each plug with a flat-blade screwdriver and pulling them out.

Step 2: Install the new diverter motor

1. Insert the new diverter motor into the sump housing by aligning the holes and pushing it in until the tabs lock.
2. Secure the new motor with the two Torx 15 screws.
3. Reconnect the plugs to the appropriate sockets on the new motor.
4. Cut a pair of wires to the appropriate length with a wire stripper and strip the ends.
5. Attach the wires to the fuse by inserting them into the designated openings. Tighten the screws with a small flat-blade screwdriver.
6. Secure the wires next to the harness with a zip tie and trim off any excess wire. Be careful not to cut any other wires. If the yellow plug from the turbidity sensor is loose, push it back onto its connector.
7. Place the dishwasher upright and slide it back under the counter. Make sure the hoses are inside.
8. Secure the dishwasher to the countertop with the mounting bracket and screws.
9. Thread the water line onto the shuttle valve and tighten it with a 5/8 open-ended wrench.
10. Remove the towel and container, then connect the drain hose and tighten the clamp with a 5/16-inch nut driver.
11. Attach the diffuser to the shaft and make sure the cutout on the diffuser matches the shape of the shaft.
12. Install the cover by aligning the holes and securing it with a Torx 15 screw.
13. Place the manifold back in position by aligning the holes, then lock the clips on the sides and top.
14. Secure the manifold with three Torx 15 screws.
15. Insert the filter basket and turn it clockwise to lock it in place.
16. Attach the spray arm(s) by aligning the base and turning it clockwise.
17. Put the dish racks back into the dishwasher. Install the rollers on the rails and lock the end caps.
18. Close the dishwasher door.
19. Plug in the dishwasher and turn on the water supply.
20. Run a test cycle to make sure the dishwasher is working correctly and check for any leaks.

Read more: How to Clean a Dishwasher

Additional information

Thanks for reading! We hope this guide helped you replace the diverter motor on your Whirlpool 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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