Thread Number: 73260  /  Tag: Modern Dishwashers
Loud sound from Kitchenaid dishwasher
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Post# 967671   11/13/2017 at 07:16 by thefisch (Florida)        

Our 12yo Kitchenaid dishwasher (model kuds01dlss6) used to run quietly but now makes a loud, consistent groaning noise during the wash and rinse cycles. The drain and fill cycles are still quiet. I removed the parts inside the dishwasher down to the food grinder area to remove any foreign objects - which there weren’t many since we rinse in sink first. I also turned the impeller via the grinder and it seemed to turn smoothly. However, the sound still persists. With the bottom front panel off, the sound definitely appears to be coming from the circulation pump area. From what I have read, the motor bearings are the likely suspect given the potential of a shaft seal leak and the age of the dishwasher. Although I saw no signs of leaking from underneath, I know from pool motors that even the slightest of leaks can rust out the bearings. A replacement pump/motor can be had for less than $150. Would anyone who has done this repair care to comment on difficulty, other issues that may arise or if I am barking up the wrong tree?

Also, given the dishwasher is 12 years old, are there other commons issues that I should look for or consider before deciding to repair versus replace? Not sure of the longevity of these dishwashers. From poking around the inside, everything look in decent condition except for one or two rusted rack tines.

Thanks in advance for any advice.





Post# 967672 , Reply# 1   11/13/2017 at 07:22 by askolover (South of Nash Vegas, TN)        

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here's a video





Post# 967697 , Reply# 2   11/13/2017 at 11:55 by DADoES (TX, U.S. of A.)        

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TheFisch:  A replacement pump/motor can be had for less than $150.
P/N W10239405.  SearsPartsDirect.com lists $100.43.  PartsDr.com, the source I often use, is $84.31 with $6.99 shipping.


Post# 967703 , Reply# 3   11/13/2017 at 12:25 by Yogitunes (New Jersey)        

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what about a used one from ebay......

replacement part number W10782773....


I know these can be replaced with a whole drop in unit....but what about just replacing the recirc motor part only?


CLICK HERE TO GO TO Yogitunes's LINK on eBay


Post# 967739 , Reply# 4   11/13/2017 at 16:16 by thefisch (Florida)        

Thanks for the video and buying tips. I assume the video is comprehensive but are there any tips on this repair?

Also, I assume this means folks think it is worth repairing even though the rest of it is 12 years old. Are there any high failure parts I should replace while I have it out or just do the pump/motor?


Post# 967745 , Reply# 5   11/13/2017 at 16:28 by jkbff (Happy Rock, ND)        

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I've thought I could sneak by with replacing the chopper assemblies and the impellers.... Every one I've done has leaked...

It is easier to purchase a sump with the motor attached and call it a day... I wish I would have done that in the first place on the last two and now I've got to go back and do it.


Post# 967820 , Reply# 6   11/13/2017 at 23:22 by askolover (South of Nash Vegas, TN)        

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on repairclinic.com the whole motor sump unit is cheaper than just the motor alone!


Post# 967842 , Reply# 7   11/14/2017 at 02:39 by Combo52 (Beltsville,Md)        
Noisi dishwasher

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It sounds like you’ve narrowed it down to the pump and motor, I have never had any problems just replacing just the motor on these DWs I do several every week

Bear In mind that your pre-rinsing is what causes the seal failure and rusted racks, pre-rinsing dishes generally cuts the life of a dishwasher in half. Dishwashers were never designed to wash clean dishes without food soil, the detergent is too strong and temperatures are too high.

John L.


Post# 967869 , Reply# 8   11/14/2017 at 07:45 by Yogitunes (New Jersey)        

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Pre-rinsing....this is so true...

especially for dishwashers with 'Sensor' cycles.....with no food particles, your wash time could be reduced, and it will jump into final rinses, 2 if your lucky...

just because you press 'Heavy' or 'Normal' doesn't guarantee a full cycle....something to think about...


Post# 967958 , Reply# 9   11/14/2017 at 18:45 by thefisch (Florida)        

Well if the pump and motor together are cheaper than just the motor, I guess I might was well do the pump/motor assembly.

Regarding pre-rinsing, I had no idea that it could be a bad thing. We scrape off excess food and will rinse them in the sink. There is some stuff left on there but clearly not as much as if we just put the used dishes in there. This model does start with a 'sensing soak' if that matters. I always thought that introducing more food particles could increase the chances of dishes coming out dirty. However, after 12 years of use, did I really shorten the life of the dishwasher that much?


Post# 967963 , Reply# 10   11/14/2017 at 19:35 by Yogitunes (New Jersey)        

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if you want to give it a challenge, throw a whole cake at it once in a while....

I haven't done that to my UltraWash in years....but after the first few times, I figure it could handle anything after that....

this gives me an idea, I need to throw one into my Kitchen Aid....maybe I will bake one tomorrow...

any great dishwasher can have his cake, and pulverize it too!


Post# 967968 , Reply# 11   11/14/2017 at 20:19 by appnut (TX)        

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I imagine you've been using your normal cycle and hopefully not adding any options.  With your dish prep habits, I'd suggest all you use is the quick clean up cycle. 


Post# 971535 , Reply# 12   12/4/2017 at 18:02 by thefisch (Florida)        

@appnut, we regularly use the normal cycle and the energy saver dry. What's the difference between normal and the quick wash cycle? Would that quick wash cycle not have worn out the pump/motor as quickly? Less wear on the seals?




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