Thanks for this excellent forum and well-reasoned answers. I have carefully read all of the questions and answers in this section but haven't seen any that quite get to the heart of mine.
I have water dripping from two areas of the plastic case for the "diverter motor" -- W10155344. It seems that this is pretty common fault, based on the comments of others. My questions:
1. When I think of "motor" in the context of a dishwasher, I think of an electrical device -- not moving water. Does this diverter motor assembly actually have water circulating in it. That is, is it possible that the leak originates from this plastic case, or is it dripping from somewhere above the plastic case onto the diverter motor assembly?
2. I would obviously prefer to dig into the machine only once, rather than, for example, replace the diverter motor, and then find that the leak is from another source, say a seal somewhere. Accordingly, do you have a recommendation as to what else should be replaced at the same time that the diverter motor is replaced.
3. Is the leakage from the diverter motor assembly a really common problem with Kitchenaid dishwashers? Ours serves a household of two people, is 5 years old, and has probably been leaking for quite a while.
Thank you for your help.
In regards to the leaking, the leaking would actually be coming from the seal that is on the sump housing where the diverter motor goes into the dishwasher. The part that you would want to replace would be the sump housing part number W10168822 but will also want to replace the diverter motor W10155344 as the leaking can damage the motor itself.
When replacing the diverter motor can the controller read its position or does it need to be set? If so how do I do this?
Answer Hello MikeG. Just unplug the unit for about 20 minutes and then reconnect the power and start the unit. It should find it's location.
Installing the motor diverter valve, part #8579252, how do you line up the red seal with the shaft of the diverter motor?
Answer Hello John. 1. Unplug dishwasher or disconnect power.
2. Remove the access panel and toe panel.
3. Remove the drain hose.
4. Remove the drain pump.
5. Reach under the dishwasher and rotate
each of the 3 sump tabs 1/4 turn clockwise
to unlock the sump from the tub. 6. Open the dishwasher door.
7. Remove both dish racks.
8. Remove the upper and lower filters. 9. Remove the lower Spray Arm assembly. 10. Remove the Turbo wash manifold. 11. Remove the feed tube assembly. 12. Reach under the dishwasher and push up
on the sump to separate the seal of the
sump from the tub bottom. Note: Do not use the upper filter tabs to
lift the pump. 13. Lift the sump from inside the dishwasher
tub and prop the front edge up so the
connections to the OWI, optical water
indicator, are accessible. 14. Disconnect the OWI wiring by lifting the locking tab and removing the wire connector. 15. Pull the harness wires on the left side of
the sump off of the wire retainer. 16. While lifting the sump, be sure that the
harness wires on the right side of the sump
release from the wire retainer clip. 17. Turn the sump over and set it down in the
sump hole upsidedown.
18. Remove the wires from the wire retainers
on the diverter
19. Disconnect the wire connector to the
diverter limit switch by lifting the locking
tab and removing the wire connector. 20. Disconnect the wire connector to the
diverter motor by lifting the locking tab
and removing the wire connector. 21. Remove the wires from the wire retainer
clips on the wash motor.
22. Disconnect the two wire connectors to the
wash motor by lifting the locking tabs and
removing the wire connectors. 23. The sump can now be removed from
24. When reinstalling the sump into the tub
use the alignment tab in the front of the
sump and match it to the slot in the tub. 25. Remove the two screws that secure the
diverter valve motor to the sump and remove the diverter valve motor from the
My kitchenaid washer is about three years old. I ordered a replacement diverter motor part AP4324941. It also included a wire harness with fuse part AP4319979. There were not any instructions on where or how to install this wire. I traced the wire harness back to where it plugs in but do not see a similar part installed. Is this a add on fuse that needs to be wired into the existing harness or is there somewhere else I missed looking for it? Thanks
Answer Hello Mark,
You should put this fuse in one of the two blue wires leading from the control to the diverter motor. This will prevent the diverter from shooting the control should it become shorted. Basically cut one of the blue wires that leads to the diverter motor and put one side of the cut wire, (after stripping the end back about 1/4 inch), in the connector and tighten the screw. Do the other wire the same way in the other side of the connector.