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Question about Whirlpool GU2400XTP Built-in Dishwasher

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Loud Whining/Humming noise while washing

The dishwasher functions normally except for the following problem. When it is washing it makes a loud humming/whining noise. The washing cycle periodically pauses and the noise disappears but starts again when the dishwasher resumes washing. I checked the chopper assembly and removed any debris from this area and the sound remains. I also ran throught the diagnostic cycle and the noise is only evident when the wash motor is running. If the problem is in the pump motor or pump sump is there a good way to find out which it is? Any help is appreciated.

Posted by Brian Shetler on

  • 6 more comments 
  • Anonymous Dec 24, 2007


  • momof2boys Dec 27, 2007

    I have the same problem, any advice is appreciated. I will probally get stuck calling a repair man.

    momof2boys. Arizona

  • Anonymous Dec 29, 2007

    Our Whirlpool Gold just started making this same annoying noise about a week ago.

  • Anonymous Jan 20, 2008

    Exact same problem and it drives me crazy to hear it keep humming and humming. Please find a solution to this noisy issue.

  • Anonymous Mar 22, 2008

    Same problem, loud intermitent whining and humming just started after 12 months and sounds like the pump is going out... also had to replace tips on racks with plastic caps...

  • kathyaustin Apr 02, 2008

    we have the same problem, LOUD Noise during the washing cycle, quiet rest of the time.  My machine is only 2 yrs 3 months old.  Called Whirlpool repair and they said it is probably the pump which will need to be replaced.  I am not very happy as it isn't that old.  I let you know.   KathyinAustin

  • ironbutt Nov 22, 2008

    Same symptoms; I have to wonder how longer other's symptoms lasted before the motor was replaced or failed.

    Paul C

  • Anonymous Dec 04, 2008

    Exactly the same



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It's noisy If your dishwasher seems noisy, check these:

Water-inlet valve
Heater fan
Water-inlet valve An aging water-inlet valve can sometimes fail slowly, rather than all at once. It can shudder on and off rapidly, causing the incoming water lines to shake, rumble, and rattle--sometimes violently. If yours is doing this, replace the inlet valve.

Motor If it's the motor that's noisy, either of these may be the "culprit:"

  • As motor bearings wear out, they can become quite loud when the motor runs. They wear out quickly if they frequently get wet, because the water washes away the motor bearing grease. Bearings can get wet if the spin seal is defective. Then there will also be water leaking onto the floor beneath the dishwasher. Replace the seal if it leaks (read about the main tub seal in the "It leaks" section, later).

  • If, from beneath the dishwasher, you can see a round, plastic disc that's mounted to the top of the motor (a "slinger"), it may have broken free of the motor shaft. If so, it could be rattling around the shaft while the motor is running. If that's the problem, you need to replace the motor.

Heater fan If the heater fan bearings are rusted or worn, they may squeal, or scrape loudly during the drying cycle. If this is the problem, replace the fan motor. Alternatively, the fan blade may be loose. If so, you need to replace it.

Pump Small fruit pits, toothpicks, and fragments of glass sometimes get stuck in the pump. When this happens, open the pump and remove the debris. The pump is usually mounted directly to the motor, then attached to the bottom of the dishwasher.

To get to the pump, you usually need to remove the lower rack, the spray arms, and the spray arm support from the inside of your dishwasher. A dishwasher pump isn't obvious. Look for an impeller--a round, plastic fan blade-type device that spins around and pushes the water toward the drain. When you can see the drain impeller, you should be able to see the clogging debris.

Posted on Mar 22, 2008

  • Anonymous Mar 22, 2008

    Depending on how old your machine is, any of these problems may be the culprit...




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When the dishwasher first comes on there is an intermittant rubbing sound. Any ideas?

Posted on Jan 15, 2009



I've got the same issue with my whirlpool dishwasher, model GU1200XTLS. If I find out anything, I'll let you know. Have you received any insight?

Posted on Feb 25, 2007

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My samsung dishwasher has a constant buzz that occurs during start up and lasts through all of the cycles. I saw where there is an electrical noise filter and did not know if that could be the cause.

No a noise filter is a different kettle of fish. That stops electrical interference noise from affecting your television, radios and electrical devices.

The most likely source of the hum is the start capacitor on the motor, or the motor itself.


This has a different idea

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Samsung Dishwasher Making Noise? Follow These Tips

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The loud humming noise can be due to the pump sticking if a piece of debris gets trapped in it or an intermittent fault on the pump capacitor or starter relay.

Check out these links below to get tutorials and advice on how to clean the pump or change the capacitor or relay which is cheap and simple job. How to replace Dishwasher pump Bosch Siemens etc Dishwasher Repair Manual Table of Contents http://www.ukwhitegoods.co.uk/help/fault-codes/dishwasher-fault-codes.html?start=25
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