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Pressure switch is disconnected - Is that normal?

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Hello esteemed community. I have a Kenmore 17372 dishwasher. All of a sudden, it stopped filling with water. - I

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Old 04-24-2014, 03:25 PM
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Default Pressure switch is disconnected - Is that normal?
Model Number: 17372   Brand: Kenmore   Age: 5 - 10 years   

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Hello esteemed community.

I have a Kenmore 17372 dishwasher. All of a sudden, it stopped filling with water.

- I checked the float and its switch and that seems ok.
- I checked the voltage at the inlet pump and it is ok.
- Water pressure to the dw has not changed and is fine
- When I turn the dw on, I clearly hear water passing through the valve which is puzzling. Then a small amount of water seems to fill the sump and before it reaches the usual level of the float, it stops filling up and starts "washing".

Since the dw is 8 years old I went ahead and ordered a new valve, thinking it might be on its way out soon anyway.

But while I was under there, I noticed an odd thing: Both connectors to the pressure switch are disconnected. Since I am quite sure I did not do that, and no one has been under there that I remember, I wonder if it was like this since new. Is there any reason you guys can think of why that would be disconnected? Is there any reason not to reconnect? We are not having any draining issues. Probably because I take the whole motor sump assembly apart once a years to clean out all the gunk in there...

Thank you very much for any help.

Bo.


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Old 04-25-2014, 05:01 AM
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Your model number is not complete.
Please check it.

Kenmore numbers are usually 3 digits, a period and then an additional 8 digits.
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Old 04-25-2014, 08:54 AM
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Sorry about that. That is what is written on the door frame.

I see a longer version on the bill:

6651737201

Does that help?

Thank you

Bo
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Old 04-25-2014, 05:18 PM
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Sorry but I cannot find any info on the given model number .
Tried at AppliancePartsPros and the Sears parts site.
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Old 04-25-2014, 05:59 PM
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I appreciate your help very much, denman.

I found another version of the number inside the door. This time it is "spelled" like this:

665.17372301

Thank you

Bo
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Old 04-26-2014, 02:47 AM
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OK that number did come up.

Here are your parts
Parts for Kenmore Dishwasher 66517372301 - AppliancePartsPros.com
If you go to the Sears parts site they have actual parts breakdown diagrams.
Unfortunately they do not share these with other parts vendors.

See the attachment for the units tech sheet.

I cannot say why the pressure switch is disconnected but this should not effect the fill so was probably disconnected from day one.
If you look a part up on AppliancePartsPros often there will be more views and a Q&A section about that part.

You mentioned the float. This is just a safety device to prevent over fills (floods). Fill is just a timed event.

I would remove and check the fill valve.
There is a screen filter on the input side of the valve which may be dirty and might just need cleaning.
Do not permanently remove the screen as it is there to keep crud out of the valve which could hold the valve open and cause a flood.
You have one on order so that will most likely solve your fill problem.

Since you are working on it you may as well give the pump a cleaning.
Attached Images
File Type: pdf 17372301.pdf (983.3 KB, 3 views)
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Old 04-26-2014, 11:14 AM
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Thank you very much denman. Very useful info.

I received my replacement inlet valve yesterday and installed it. It now works perfect! The screen was very clean so that was not the problem. The only difference I noticed between the new and the old valve was that the new valve read 1.2 ohms while the other one was more like 920 ohms. Not a huge difference. But evidently enough to cause water to stop filling before it reached normal level. Odd.

But back to the main original question: The unplugged pressure switch. I will reconnect and see what that does. But, what does that pressure switch do exactly? The schematic just says that it measures the soil amount. Does it measure the outgoing water pressure? And then what happened once it detects too much or too little pressure? Does it switch the chopper on to grind some of the food debris?

Thank you.

Bo
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Old 04-27-2014, 05:56 AM
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The schematic just says that it measures the soil amount. Does it measure the outgoing water pressure?
Yes and yes

And then what happened once it detects too much or too little pressure?

If it senses soil then I think it adds another rinse cycle.

Does it switch the chopper on to grind some of the food debris?
No the3 chopper is always on.
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Old 04-28-2014, 07:16 AM
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OK, thank you very much for your info, penman.

I will reconnect it.

Bo
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