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KitchenAid Dishwasher KDTM404KPS0 lower spray arms not spinning

DanaDIY

Premium Member
Joined
May 5, 2014
Messages
9
Location
Milwaukee
Model Number
KDTM404KPS0
Brand
KitchenAid
Age
1-5 years
The dishwasher is not washing. Water comes in and gets hot, but the spray arms don't move. When we cancel the cycle, the water drains out. We are getting error codes 10-2 and 7-1. Per the tech sheet that came with the machine, 10-2 is the vent wax motor and 7-1 is the wash motor. We replaced the wash motor (part W11416362 sump and motor assembly). We are having a tough time figuring out which part is the vent wax motor. There was no change in the problem after replacing the wash motor.

We bought it in April 2020.

What are we missing?
 

Jake

Appliance Tech - Admin
Staff member
Joined
Aug 24, 2004
Messages
132,673
Location
Redmond, Oregon
Here's the vent assembly with the wax motor in it: Vent W11416460

Watch this video:


Jake
 

DanaDIY

Premium Member
Joined
May 5, 2014
Messages
9
Location
Milwaukee
So we installed the new vent assembly...and we are still getting the same error codes. We tried running a wash cycle. It fills with hot water, but the spray arms don't spin. What do we do next???
 
Last edited:

Jake

Appliance Tech - Admin
Staff member
Joined
Aug 24, 2004
Messages
132,673
Location
Redmond, Oregon
Unplug dishwasher or disconnect power.
Remove toe and outer door panels to access control board.
Unplug connector P5 from control board.
Check the wash motor using an ohmmeter, measure the resistance between P5-1 and P5-2.

If the resistance is between 10-15 ohms, the wash motor and harness are good.

If meter check of wash motor circuit shows normal resistance and still not getting power to the wash motor, replace control board.

Here's the control board for your model: Cntrl-Elec W11410066

Jake
 

DanaDIY

Premium Member
Joined
May 5, 2014
Messages
9
Location
Milwaukee
Thank you! Unfortunately, we already replaced the wash motor...so does that mean it is likely the control board even tho there is no fault code for that? And why is the dishwasher still giving fault codes for things we have already replaced?
 

Jake

Appliance Tech - Admin
Staff member
Joined
Aug 24, 2004
Messages
132,673
Location
Redmond, Oregon
Yes, I know you already replaced the wash motor.:) But you could have a issue in the wiring from the control board to the wash motor, that's why your suppose to ohm test the complete wire harness down to the wash motor, and thus that ohm tests the wash motor in turn, you see what I mean?

Also, the wash motor you got could be defective, its rare, but not unheard off.

And why is the dishwasher still giving fault codes for things we have already replaced?
This shows you how to clear the error codes:

Screenshot 2022-06-01 06.28.08.png


Jake
 

Jake

Appliance Tech - Admin
Staff member
Joined
Aug 24, 2004
Messages
132,673
Location
Redmond, Oregon
Yes, good stuff indeed.:)

Let us know how it goes.

Jake
 

DanaDIY

Premium Member
Joined
May 5, 2014
Messages
9
Location
Milwaukee
@DanaDIY Did your problem get resolved ? If so, please can you share ?
not yet - we stopped trying because our son was in the hospital for a month...and then we got a letter from whirlpool about a "proactive program" (NOT a safety recall) and someone is coming out to do a "performance upgrade" to replace the heating element. So we are going to let that happen before we do anything else. Will update after August 17th
 

paul23

Premium Member
Joined
Aug 9, 2022
Messages
5
Location
Arizona
Sorry to hear that @DanaDIY We are in the same boat. They replaced the heating element but still not helping. We are facing the same problem as you. We have placed the order for the pump & sump and they are saying it will take months for it to be delivered. Any idea from where you got this W11416362 ?
@Jake Please you can guide us if possible. Here we are waiting for the pump & sump. Many blogs here suggest that even after replacing the pump & sump its not working. How to go about this ?
 

paul23

Premium Member
Joined
Aug 9, 2022
Messages
5
Location
Arizona
Please do share if anything worked for you. Thank you and hope your son is doing well now.
 

DanaDIY

Premium Member
Joined
May 5, 2014
Messages
9
Location
Milwaukee
Please do share if anything worked for you. Thank you and hope your son is doing well now.
Thank you - we will keep you posted. Please let us know if anything works for you...I am so sick of washing dishes by hand!!!
 

Jake

Appliance Tech - Admin
Staff member
Joined
Aug 24, 2004
Messages
132,673
Location
Redmond, Oregon
You have a filter inside that chamber, that's possibly clogged and broken, here's the part number: W11108699

Here's the dishwasher wash(circulation) motor for your model, which comes with the new filter already installed for you:
Pump Assembly W11414076


Here's the service manual: https://drive.google.com/open?id=1IABZRwoDnJElVXGVxsXNrdtXmyUJclAL

Disconnect power to your dishwasher. Then you will need to remove the dishwasher from underneath your cabinet.

Then you will need to remove the sump and drain pump first--->Starts on Page 4-21.
Then on Page 4-26 your filter assembly is #4.
Then start reading on Page 4-27 to remove the wash motor and rotating inlet filter.

Mike took lots of photos and documented them here:

Let us know what you find.

Jake
 
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