KitchenAid Stand Mixer Motor Housing Seal: Signs, Replacement, and Maintenance

The motor housing seal on a KitchenAid stand mixer is located at the back of the appliance. It prevents moisture and debris from entering the motor housing, which helps protect the internal components. Over time, the seal can wear out or get damaged, increasing the risk of motor issues. Replacing it is a simple task you can do yourself.

Benefits of Replacing a Worn Motor Housing Seal

Regular maintenance, including replacing a faulty seal, can improve the durability and performance of your KitchenAid stand mixer. Benefits include:

• Preventing dust, grease, and debris from entering the motor housing
• Reducing the risk of motor failure due to contamination
• Helping maintain smooth and efficient operation
• Extending the lifespan of your stand mixer
• Avoiding costly repairs by addressing minor issues early
• Keeping the appliance clean and free from buildup that could affect performance

Signs That the Motor Housing Seal Needs Replacement

A damaged or worn motor housing seal can cause problems that affect the performance and lifespan of your stand mixer. Look for these signs:

• Visible cracks, warping, or deterioration on the seal
• Grease or food particles accumulating around the motor housing
• Increased noise or vibration while mixing
• A burning smell or overheating, which could indicate debris entering the motor area
• Leaking oil from the mixer, which may suggest internal contamination

Tools and Materials

You’ll need:

• Phillips screwdriver
• Flathead screwdriver
• Needle-nose pliers
• Replacement motor housing seal (make sure it’s compatible with your mixer model)

Check Part Compatibility

Before starting, confirm that your replacement seal matches your mixer’s model. The model number can be found in one of these locations:

• Underside of the mixer’s base
• The back of the mixer’s head or motor housing
• Side of the mixer’s base

Look for a label marked “MOD” or “Model,” and either write down the number or take a photo for reference.

Safety Precautions

When working on any appliance, keep these safety tips in mind:

• Unplug the mixer or turn off the circuit breaker before starting.
• Allow the appliance to cool down if it was recently used.
• Work in a well-lit, dry area to avoid accidents.
• Keep your workspace organized and free from clutter.
• Keep children and pets away from the work area.
• Avoid working with wet hands, and make sure the area is dry.
• Refer to the user manual for any specific safety or installation instructions.
• Handle parts carefully—forcing components can cause damage.
• Wear insulated work gloves to protect your hands from sharp edges.
• If dealing with wires, use non-conductive tools and avoid direct contact with exposed wiring.

How to Replace the Motor Housing Seal in a KitchenAid Mixer

Follow these steps to remove the old motor housing seal and install a new one to keep your mixer working properly.

Remove the Old Motor Housing Seal

1. Unplug the mixer from the power source.
2. Remove the beater by lifting it slightly and turning it clockwise.
3. Remove the bowl by lifting it and pulling it out.
4. Use a Phillips screwdriver to remove the screw on the back cover of the mixer.
5. Rotate the cover downward and lift it off its mounting legs.
6. Set the cover aside.
7. Use a Phillips screwdriver to remove the two screws holding the trim band in place.
8. Carefully flex the trim away and lift it off.
9. Set the trim band aside.
10. Locate the motor housing seal around the speed control assembly.
11. Use a Phillips screwdriver to remove the ground wire.
12. Detach the wires from both sides of the seal using a small flat-head screwdriver if needed.
13. Remove the black and white wires on one side.
14. Remove the white wire from the bottom and the red wire from the top on the other side.
15. Once all wires are disconnected, move them away from the seal.
16. Carefully lift the old motor housing seal out.
17. If any wires get caught, carefully reposition them to remove the seal completely.

Install the New Motor Housing Seal

18. Identify the cutouts and perforations on the new motor housing seal.
19. Place the bottom of the new seal into position, making sure the corners fit behind the housings.
20. Rotate the top of the seal upward and push it into place.
21. Reattach the wires on the side where the red wire was on top, and the white wire was on the bottom.
22. Reconnect the ground wire using a Phillips screwdriver.
23. Reconnect the black and white wires.
24. Check that all wires are securely connected, using a small screwdriver to push them in if needed.

Reassemble the Mixer

25. Align the trim band carefully with the mixer body.
26. Hook each end of the trim band around the back side of the mixer.
27. Use a Phillips screwdriver to secure the screws in place.
28. Make sure the edge of the seal fits into the cutout before reinstalling the back cover.
29. Align the feet of the cover with the corresponding openings.
30. Lift the cover gently to prevent it from catching on any wires.
31. Use a Phillips screwdriver to reinsert the screw and secure the cover.

32. Align the bowl’s pinholes and set it in place, then lock it.
33. Position the beater by aligning the shaft with the opening and securing the locking pin in the slot.
34. Lift and lock the beater into place.
35. Plug the mixer back into the power source.
36. Turn on the mixer briefly to check that it functions correctly.

Also Read: How to replace KitchenAid stand mixer motor housing seal WP240775-1

Tips for Maintaining Your KitchenAid Stand Mixer

Keeping your stand mixer in good condition involves more than just replacing worn parts. Follow these maintenance tips to keep it running smoothly:

• Wipe down the exterior with a damp cloth after each use to prevent buildup.
• Regularly inspect seals, screws, and attachments for wear or looseness.
• Lubricate the gears as recommended in the user manual to maintain efficiency.
• Store the mixer in a dry, dust-free area when not in use.
• Use the correct attachments and avoid overloading the mixer to prevent strain on the motor.
• Periodically check for unusual noises or vibrations that might indicate an issue.

What’s Next?

A damaged motor housing seal might seem like a small issue, but ignoring it can lead to bigger and more expensive problems. Taking care of it now helps prevent breakdowns and keeps your KitchenAid mixer working smoothly. If you’ve noticed any warning signs, replacing the seal is a simple fix that can make a big difference.

Regular upkeep is key to keeping your mixer in good shape. You don’t need to be an expert, just a few tools and a little patience will do the job. The process is straightforward, and once it’s done, your mixer will be ready to handle any recipe without trouble.

If you haven’t checked your mixer’s motor housing seal yet, now is the time. A quick look today might save you from a major repair later.