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LG DISHWASHER High Pitched Screech.

Recently I slightly moved my dishwasher to clean the top and since then there is a loud high pitched noise when I use it on wash and dry. Can you tell me what is causing this.?

Thanks

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  • 3 more comments 
  • Nicko2 Nov 20, 2007

    We have a new LG LD1403W with a similar high pitched whistle when filling. I am going to try and swap the inlet hose with our old one to see if it makes a difference.

  • Anonymous May 31, 2008

    I just purchased and LG dishwasher. It was installed today and it has a high pitched noise when running.

  • jawny Dec 29, 2008

    I have an LG dishwasher which makes a high pitched whistle. I've tried to locate it, but I can't, though if I pull on the wiring harness on the lower right side, it seems to stop, but of course, the whistle is intermittent so its hard to pinpoint. Its enough to drive you insane though, my wife wants me to return it

  • cbwoods Jan 06, 2009

    Same problem here, been happening for months, our unit is 2 years old, its so loud you cant be near it when running the cycle. The squeal starts whenever its pulling water in. :( LG = Load Garbage!

  • seanatouc Feb 18, 2009

    Has a high squeal about 50% of the time while running. I think it may be the bearings. Two years old and I have already had the motor replaced under warranty!

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6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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bigg t
  • 640 Answers

SOURCE: Dishwasher Making Loud High Pitched Noise.

How deep do you want to get into this?It sounds like the wash pump motor bearings that are worn.You can pull the unit out flip it over and wd40 the bearings in the motor or you can replace the bearings.Try to lube them first.

Posted on Feb 24, 2008

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  • 351 Answers

SOURCE: High Pitched Noise

try washing on hottest cycle it may be the seal in the spray pump somethimes the rinse aid can put a glaze on the seal if that doesnt work you can replace just the front part of the motor( in australia) dont know where you are.

Posted on Mar 09, 2008

SOURCE: Dishwasher Making Loud High Pitched Noise.

Problem is with the main pump motor bearing. Water leaking from the face seal enters the front bearing. After some time, the bearing wears out bringing on the loud noise. The motor is easy to remove but the bearing requires some time to remove. I did not have access to a press so I ground off the bearing an replaced it with a shielded 8mmx22mm type. Grainger p/n 1L001. The part is only $9 compared to over $200 for a replacement motor. It takes some time and disassembly of the dishwasher can be difficult but take your time and be ginger with the parts. The root of the problem seems to be the impeller. It screws onto the motor shaft and seems to work loose after time. Since its tightness compresses the face seal, when it loosens water can seep. No way to lock it in place after tightening. Weak design point.

Posted on Sep 24, 2008

  • 11 Answers

SOURCE: Dishwasher Making Loud High Pitched Noise.

A loud high pitch whine while running the dishwasher means that there is something caught in the chopper assembly. To get to the chopper assembly you need to take the racks out and take the pump apart from the inside of the dishwasher. The chopper assembly looks like a metal grate with holes in it. And it might not even be stuck in the grate but somewhere in the pump area due to the water being pumped out, so the best idea is to take the whole thing apart and clean everywhere. However I do not recommend doing this unless you are completely certain you will remember where the screws and gaskets go, otherwise you risk damaging your pump or house from a leak or improper installation. You have been warned.

Posted on Jan 15, 2009

BIKER T
  • 909 Answers

SOURCE: IT'S LOUD, HIGH PITCHED WHINE, RUNS FOREVER. I

Go onto the net and ask what the best dishwasher or recomendations are for that region.

Posted on May 18, 2010

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