Thread Number: 68432  /  Tag: Vintage Dishwashers
32 year old Kitchen-Aid by Hobart
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Post# 911833   12/19/2016 at 18:18 (490 days old) by Floyde (Los Angeles, CA)        

I have a 1984 Kitchen-aid by Hobart. It's starting to make a lot of squealing sounds. Everyone I know who has purchased a new dishwasher in the last 10 years has had circuit board issues.

Is the a new dishwasher that is mechanical rather than electronic that the members would recommend?

Thank you!

Post# 911837 , Reply# 1   12/19/2016 at 18:45 (490 days old) by toploader55 (Massachusetts Sand Bar, Cape Cod)        

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Pictures and model numbers always help with help !!! :)

Post# 911847 , Reply# 2   12/19/2016 at 20:55 (490 days old) by Floyde (Los Angeles, CA)        
Thank you

It's really not about the old dishwasher but I did post it here. It's a time to replace and I'm asking for recommendations for a new dishwasher that doesn't have an electronic control board but a mechanical one.

Post# 911884 , Reply# 3   12/20/2016 at 04:05 (489 days old) by brucelucenta ()        

Don't think there is such a creature with the exception of a very bottom of the line model in a few dishwashers. The newer machines have come a long way with circuitry now. Usually that is not an issue anymore. In fact, the newest Kitchenaid dishwashers made by Whirlpool are quite good at cleaning and whisper quiet.

Post# 911887 , Reply# 4   12/20/2016 at 05:30 (489 days old) by toploader55 (Massachusetts Sand Bar, Cape Cod)        

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Speaking of new machines ... Check this out...

Post# 911936 , Reply# 5   12/20/2016 at 14:11 (489 days old) by Floyde (Los Angeles, CA)        

Are parts still available ?

  Photos...       <              >      Photo 1 of 3         View Full Size
Post# 912004 , Reply# 6   12/21/2016 at 08:51 (488 days old) by swestoyz (Cedar Falls, Iowa)        
Are Parts Available?

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They sure are.  I'm more familiar with the 15-20 series machines, but if you're getting a squeal during wash, there is a possibility that something has gotten in the pump, or your shaft seal might be on the way out.  The shaft seal assembly is still available, which would be the same part for all of the 21 series machines.

Post# 912019 , Reply# 7   12/21/2016 at 11:16 (488 days old) by Floyde (Los Angeles, CA)        
Thank you

This dishwasher cleans like a dream. It's a little loud, but doesn't have to run for 2 and half hours either.

Post# 912049 , Reply# 8   12/21/2016 at 14:46 (488 days old) by kb0nes (Burnsville, MN)        

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I'd try to keep that machine as long as you can keep it running. Common parts should be available for sometime at this point.

The squealing may go away if you just add a bit more fat to the machines diet, wash a butterdish without wiping it clean first.

As for electronic controls I wouldn't fear them. I've had electronic dishwashers for over 20 years and never replaced a board. Modern cost cut mechanical timers (if they were available) would probably be just as unreliable.

Post# 912118 , Reply# 9   12/22/2016 at 08:31 (487 days old) by joeypete (Concord, NH)        

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What kind of squealing noise? Like when does it do that? Mine 1985 Hobart was doing that when the pump would stop. I discovered it was because of the detergent I was using. I've been adding small amounts of STPP to the loads and it hasn't done it since.

Post# 912152 , Reply# 10   12/22/2016 at 11:48 (487 days old) by Floyde (Los Angeles, CA)        

I use cascade platinum action pacs. I think it has STPP.

Post# 912156 , Reply# 11   12/22/2016 at 12:09 (487 days old) by DADoES (TX, U.S. of A.)        

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I use cascade platinum action pacs. I think it has STPP.
Highly unlikely.  STPP (phosphates) were eliminated from mass-market / consumer dishwasher (and laundry) detergents some years ago.

Post# 912168 , Reply# 12   12/22/2016 at 14:22 (487 days old) by stevet (palm coast florida)        

Glenn is absolutely correct. About the only dw detergent out there that has a miniscule amount of phosphates in it is select Finish products. Mostly in the powerball blocks.

It tells you precisely how much on the side panel. All others state "phosphate free."

You can search out the Commercial fryer boil out Cascade which used to be their commercial powdered dishwasher detergent. That still had phosphates in it.

But having had a number of series 21 and 22 machines, the squealing was rarely a cause for concern and happened after a drain period and would just come and go at random.

I agree with the statement of adding a little bit of fat to the dishwater in the form of not washing the dishes before turning on the machine.

Post# 912210 , Reply# 13   12/22/2016 at 19:28 (487 days old) by joeypete (Concord, NH)        
Oh noooooo

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That's what I was using when mine made the horrible squealing and groaning noise!! I think they have too many suds...seriously. If you can get your hands on some STPP get it and use powdered detergent like Cascade Complete or Finish...I mean if you want to try and save the machine.

I've actually been using Regular Cascade pacs and haven't had a problem...they aren't as sudsy as the Platinum's.

Otherwise try to get some Cascade Fryer Boil has phosphates in's the commercial version..and it's available on Amazon.

Post# 912211 , Reply# 14   12/22/2016 at 19:59 (487 days old) by stevet (palm coast florida)        
I know what you mean,

We have a KitchenAid KUDP02IRWH2 Tall Tub and usually use the Normal or Light/China Cycles with the Finish Tabs and if I add any kind of rinse agent to the machine, it will foam up so much that you can hear the pump cavitating. If I use the heavy duty cycle, it gives two after rinses and there is little to no foaming.Which would make sense since the detergent is further reduced by the 2nd rinse.

If I do the dishes, I crush up half of the tablet directly into the machine for the prewash, and then there is less detergent to foam up on even the normal cycle or L/C cycles. There is almost no difference in the cleaning results. If the wife does the dishes, she practically washes them first(I leave "stuff" on the dishes), she uses the full tablet in the main wash so there is sometimes a residual "smell or film" which will suds up when water is filling a clean glass. I have been trying to get her to do what I do but I have note been very successful so far.

I guess it all comes down to each individual machine and how it works with any given product and how much provides good results.

Post# 912256 , Reply# 15   12/23/2016 at 05:47 (486 days old) by askolover (South of Nash Vegas, TN)        

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We're going to stop using tablets/pacs in our KUDI23 because of the suds in our softened water. Sticking with gel containing bleach or some powders and the fact that I can dose according to soil level. No problems with cleaning results.

Post# 913232 , Reply# 16   12/30/2016 at 23:22 (478 days old) by lowefficiency (Iowa)        

kb0nes wrote:
>>As for electronic controls I wouldn't fear them. I've had electronic dishwashers for over 20 years and never replaced a board.


There is at least one clear exception to this...  the almost 500,000 Bosch and Siemens dishwashers that were recalled for the faulty control panels that caught on fire.



The pictures aren't pretty... and many of these were high-end machines.    We bought a house that unknowingly had one of these in it, so we went through the recall process and ended up taking the offer of a new Bosch for a discounted rate in lieu of a repair.    We're ultimately pleased with the outcome (and actually rather liked the older recalled Bosch dishwasher as well)...  but if you're considering a purchase of a used Bosch, you definitely need to check the model and serial numbers against the recall list!



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