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Lg dishwasher noise

LG stainless steel steam dishwasher started making a loud whirring sound while washing dishes. It sounds like a motor spinning. I can't tell where it is coming from, maybe the chopping blade or perhaps the motor. I can hear it spin-up shortly after the cycle starts, and then it stops while it is draining. The sound is only audible while it is washing. We've only had this DW for about 2 years, probably past the warranty, but still quite young as far as appliances go.

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  • Phil Dec 31, 2012

    After reading through someone else's similar problem, and the response posted by Jeff Meyer, I decided to go a little diagnosis. I suspected the chopping blade, so I took the lower sump covers and filters off and got down to the blade. I found a couple of pieces of broken glass, a small pebble in the filter, but this was not the problem. I finally got down to the chopper blade and I found a piece of a broken drill bit about 2 inches long. My guess is the idiotic Home Depot installers are responsible for the drill bit. Or maybe it came that way from the factory, I don't know, but it is not mine - I double checked. Well, the good news is the noise is gone, the fix cost nothing - just an hour of my time. What a relief.

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  • LG Master
  • 3,247 Answers

This is very bizarre. Very likely the debris you found could have caused some damage to the dishwasher parts. If you have taken photos of the experience may be a good idea to send to the manufacturer and ask them to replace the affected parts without cost to you. This is the least they should do.

Posted on Dec 31, 2012

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Posted on Jan 02, 2017

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SOURCE: LG Dishwasher making grinding noise then blinking E1 code 10 minutes later

Well done by resolving this problem. The other way to avoid the siphoning problem through the drain hose is adding an air gap valve/connector (available at any hardware store). You can use it even if you don't have a garbage disposal in your kitchen sink. That will assure that you have the proper height of the drain hose.
Hope this helps!

Posted on Mar 30, 2009

  • 291 Answers

SOURCE: Dishwasher making loud noise during wash cycle

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

Water-inlet valve
Motor
Heater fan
Pump
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.
thanks and accept the solution accordingly

Posted on Apr 03, 2009

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Hope this helps!

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