Thread Number: 86226  /  Tag: Modern Dishwashers
KA dw without a Sensor cycle
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Post# 1107702   2/12/2021 at 08:50 (1,161 days old) by PeterH770 (Marietta, GA)        

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A friend has a newer KA from just before the change to the filter system. It does have the Proscrub option, but no separate Sensor cycle. I’m pretty sure that it must have a turbidity sensor, and if so, how does it come into play with the Heavy Duty/Normal/Light cycle options?
Thanks!





Post# 1107703 , Reply# 1   2/12/2021 at 08:57 (1,161 days old) by PeterH770 (Marietta, GA)        
No, there is no Prowash cycle

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I know it is not called Sensor Wash. It only has 4 cycles: Heavy Duty, Normal Wash, Light/China, 1 Hour Wash - there’s not a rinse only cycle.

Post# 1107706 , Reply# 2   2/12/2021 at 09:21 (1,161 days old) by DADoES (TX, U.S. of A.)        

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Model number would clarify the presence of a sensor via parts lookup, and possibly reference in the user manual.


Post# 1107994 , Reply# 3   2/14/2021 at 20:44 (1,158 days old) by peterh770 (Marietta, GA)        
Yes, turbidity sensor is there

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KUDS35FXWH3... Yes there is a turbidity sensor. What is its functions when there is no dedicated sensor cycle? What modifications does it add or subtract from the cycles?

Post# 1107999 , Reply# 4   2/14/2021 at 21:30 (1,158 days old) by Cam2s (Nebraska)        

That looks like a point voyager model. The soil sensor was actually a pressure sensor...it sensed the back pressure in the soil accumulation chamber. In the point voyager KA I had anyways the soil sensor would trigger APF purges and based on the number of purges activated would do a purge/final rinse for light soil or a full double rinse for heavy soil.

Post# 1108028 , Reply# 5   2/15/2021 at 06:23 (1,158 days old) by henene4 (Heidenheim a.d. Brenz (Germany))        

From the manual it appears all 3 cycles (Heavy, Normal, Light) have different runtimes and water usage depending on soiling (and load, for that matter).

So it will probably change the number of prewashes and rinses...


Post# 1108105 , Reply# 6   2/15/2021 at 18:48 (1,157 days old) by combo52 (50 Year Repair Tech Beltsville,Md)        
KA KUDS35 DW

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This is a point Voyager design pump, but is a later design without a pressure sensor and has a turbidity sensor instead.

 

Good DW with more room inside but not as effective as a Power Clean WP design [ but nothing else was ever as good as a PC DW ]

 

John L.


Post# 1108402 , Reply# 7   2/17/2021 at 16:21 (1,155 days old) by peterh770 (Marietta, GA)        
Thank you, John!

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But then are all 3 cycles sensor cycles? If that's the case, then the light cycle should work just as effectively as the heavy duty cycle. What does the sensing modify?

Post# 1108406 , Reply# 8   2/17/2021 at 16:40 (1,155 days old) by appnut (TX)        

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Peter, I can tell you on my 2006 Kenmore Elite (KitchenAid), if no purge was required most times it didn't exchange water after prewash, but went into main wash. Heavier soil caused a purge in prewash as well as check for another purge in main wash. The number would impact main wash temperature/length and also whether there was a post-wash purge or full rinse. Heavy also automatically did two full post wash rinses. Light/China had a lower main wash temperature set point as well as final rinse. And only did a post wash purge and final rinse.

Post# 1108408 , Reply# 9   2/17/2021 at 16:49 (1,155 days old) by henene4 (Heidenheim a.d. Brenz (Germany))        

It's basically gating the sensing.


Normal should be abled to handle most loads and will probably do anything from the Light setting to the Heavy setting.

Heavy will probably force a long, hot main wash and a certain amount of prerinsing.
Good for baked on stuff since that might not be picked up by the sensor during the prewashes.
The normal cycle might thus shorten the main wash wrongfully, thus Heavy is needed.

On the other hand a large amount of easily rinsed off soiling (think whipped cream, fresh coffee, cake residue) might trigger a longer main wash on the normal setting even though you just cleared off the coffee table and the entire load was basically clean after a prerinse.
The light cycle will limit the machine from going overboard.



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