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FIXED WDT790SAYB1 Whirlpool Dishwasher making high pitched sound when draining

kanbowhunter

Premium Member
Joined
Mar 29, 2016
Messages
23
Location
Kansas
Model Number
WDT790SAYB1
Brand
Whirlpool
Age
6-10 years
Noticed the dishwasher make a high pitched noise when getting near the end of the drain cycle. The Sump assembly was replaced 3 years ago. Sounds like the noise is coming from the pump or Sump assembly area where the drain hose comes off the pump. Would the noise indicate the pump is going out? Is it safe to run?

Thanks,
Doug
 

Jake

Appliance Tech - Admin
Staff member
Joined
Aug 24, 2004
Messages
110,960
Location
McMullen Valley, Arizona
Hi Doug,

Yes, the drain pump on your model is seperate from the wash motor sump assembly.

I'd first remove the drain pump and check for a foreign object in it, like a seed, etc.

Here's the drain pump for your model with video:
Drain Pump WPW10348269


If you find nothing in it, its likely the bearing in it has gone bad.

Let us know what you find.

Jake
 

Jake

Appliance Tech - Admin
Staff member
Joined
Aug 24, 2004
Messages
110,960
Location
McMullen Valley, Arizona
Ok Doug, sounds good.:)

Jake
 

kanbowhunter

Premium Member
Joined
Mar 29, 2016
Messages
23
Location
Kansas
Update...replaced part and fixed the high pitched noise. Thanks again for the help and providing the part to order.
 

Jake

Appliance Tech - Admin
Staff member
Joined
Aug 24, 2004
Messages
110,960
Location
McMullen Valley, Arizona
Excellent Doug, glad to hear that.:)

Thanks for the update!

Jake
 
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