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KDTM404ESS3 KitchenAid Dishwasher Spray arm not spinning

AM Appliance

Premium Member
Jul 26, 2021
Madison, WI
Model Number
1-5 years
I notice this is a familiar topic on the blog. I have a KitchenAid DW; Model # KDTM404ESS3; Serial # F94360128. Manufactured in 2019. In the beginning, the dishwasher was washing poorly and it appeared the lower spray arm was not moving. Water was being sprayed out of the lower washarm. I also noticed the diverter motor moving as I had marked the plastic cap on the inside of the dishwasher to keep track. Because of that, I replaced the washarm but that did not solve the issue.

I then returned to replace the diverter motor. At first it leaked water through the diverter motor shaft so I reinstalled with more application of the sealant. Then there were no leaks and the wash arm worked and dishes washed well again. 2+ months later the washarm is not moving again and dishes are poorly washed. Currently water is not dripping down as it did for me when I initially installed it. I will continue to monitor that.

Would you recommend another diverter motor install paying special attention to O-ring and sealant? I know some techs replace the whole pump/motor assembly. Is this the best next step?


Appliance Tech - Admin
Staff member
Aug 24, 2004
Vicksburg Junction, Arizona
Did you check the pump filter?--->On these models there has been a problem with the pump filter breaking and jamming, clogging up the wash motor, thus you will hear little to no water spray out the spray arms. Id check that next.

Mike took lots of photos and documented them here:

Here's that pump filter you can order if needed:
Pump Filter W11084156

If not in-stock at RepairClinic, It's also here: W11084156

Also look at this thread:

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