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Dishwasher- have a grinding noise in bottom of dishwasher might be bad bearing in water pump?

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Sorry to read about your problem, I hope this helps you out.

correct, or the impeller could have a broken fin. or the disposal teeth have a issue

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Posted on Dec 28, 2010

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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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My lgis making a horrible noise and is now shoeing an e1 code dishwasher


The LG does suffer from "poor quality" motor that causes this type of noise. The main motor and pump assembly is common to give this type of problem. The pump seal leaks a small amount of water that gets onto the front bearing and causes a "grinding = humming" noise. This can be easly replaced once you have the bottom off and dishwasher on its door. The motoe has 1 screw in the back holding the motor to the bottom and two rubber seals for the water pump in/out into the washer. Just pull and move motor and pump assmbly and it comes free. Replace with a new motor and pump assembly...

Nov 18, 2011 | LG LDF6810ST Stainless Steel Built-in...

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Fridgeair dishwasher not working making loud sound. water comes in and I can make it drain out but washer does not start


Hello

bearings in the heater fan may get worn out or rust. If this happens, it may become very noisy, either grinding on the bearings, or scraping against the rust. If this happens you need to replace the fan motor. Sometimes, a fan blade may come loose, and you need to replace it.
Sometimes it's the motor that makes the noise you hear. The motor has bearings in it which may become worn or get rusty. When the bearings get worn, they allow the shaft to wobble which can get quite loud. If there is a spin seal leak, water may get inside the motor, washing the bearing grease away. If the spin seal is leaking, you'll notice water leaking from under the dishwasher. There is also a disc attached to the top of the motor called a slinger. It sometimes breaks off and spins around the motor's shaft while it turns, causing some noises. You will need to replace the motor if the bearings are bad. You also need to replace the motor if the slinger is broken as well.

Newer dishwashers may make a squealing or rattling noise on the first run. This is because it has not had any water in it yet, and the motor seals are dry. You may hear this in a unit that hasn't been run in a week or more as well. You should operate the dishwasher regularly to keep the sump water from getting smelly, and to keep the seals lubricated. You can add a quart of water to the sump before running it.

Rattling noises may be produced by dishes rattling inside the dishwasher due to the water pressure from the sprayer arms on the dishes. To determine if the rattling is a loading issue, run the unit empty. If the sound is persistent, it may be that there is debris in the pump.

dishwasher water-inlet valves are noted to make a hum that lasts about 60-90 seconds several times during a washing cycle. This hum is a different hum than the sound of the motor running.

A rhythmic knocking or thumping sound may be caused the sprayer arms hitting something as they go around and around. Rearrange the dishes and resume the wash.

A clunking or clanking may be heard when the detergent cup opens; while a clicking sound may be produced by the timer or electronic control panel.

A solenoid makes a snap sound when it opens. This happens about six times during each load.

Pipes rattling or banging may be caused by a water hammer effect. Water hammer sounds are caused by a valve closing in the system, and yet the water in the pipe is still flowing because of its kinetic energy. The sound is caused by the water slamming into the closed section of pipe. A plumber can install an anti-hammer device.

Small objects can sometimes get stuck in the pump. When this occurs, you'll need to open the pump and then remove the item that is making the noise or replace the pump. The dishwasher pump is usually mounted directly to the motor and runs off the motor as well. The pump is also attached to the bottom of your dishwasher.
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Aug 06, 2011 | Dishwashers

1 Answer

As soon as the motor starts up after the dishwasher fills, the motor makes a loud grinding noise that turns into high pitch whining. Water begins leaking from above the pump.


That shows a leaking water seal. Water would run into the motor bearings which then rust and make noise. You probably need the motor / pump kit.

May 20, 2011 | Dishwashers

2 Answers

The washing machine started making a grinding noise during wash cycle (minor) and a much louder grinding noise during the spin cycle. Is this a bearing? and is it replacable? Maytag MAV7600


sounds like a bearing... although it could be the water pump... water pump is an easy fix... bearing is not an easy fix... take the belt off the bottom of the pump (under the machine) and see if it spins freely by turning it w/ your hand... or if it seems really stiff... if it looks good then it's def. your bearing...

Jan 15, 2010 | Maytag MAV7600 Top Load Washer

1 Answer

Leaking, now humming/grinding from motor


1)wash pump bearing damage(water leaks&leak on winding &bearing etc..,)
2)arrest the leakage &check.

Jan 09, 2010 | Frigidaire 24 in. FDB635RF Built-in...

1 Answer

My Kenmore Elite dishwasher makes a buzzing noise when going through the wash cycle. It's a couple years old and I don't want to replace it!


the possible causes.it could be some hard debris near the chopper blade inside the pump or some times water seal on the pump goes bad and water leaks into the motor bearing/rusting it and starts grinding noise.open the pump from inside and reach the choper blade and look for any hard debris.if find nothing then motor assly needs to be chgd.

Aug 17, 2009 | Kenmore 24 in. 17482 / 17484 / 17489...

1 Answer

Kenmore Ultrawash Quiet Guard 5 making buzzing/grinding noise


I have a very similar dishwasher, with a very similar problem. I fixed it by removing debris from the water evacuator pump located towards the front of the bottom of the machine (the last motor before the drain hose. In my case, grape stems had clogged it up. Once emptied, it purrs once again. NOTE: don't disassemble the motor, just flush it out, there is an o-ring gasket that is a bear to re-install.

Jun 22, 2009 | Kenmore 24 in. 15689 Built-in Dishwasher

1 Answer

Kenmore Elite 137889, grinding noise


If the noise is like a shaking of rattling , like coins being shaked , then it is an object trapped inside the tub.

If instead the noise is a loud grinding , that may get louder on high speed, then it is usually a bad drum bearing.

The drum bearing is replaced by accessing the bottom side of the washer, and is a not a simple repair.

May 05, 2009 | Kenmore 13789 / 13782 Dishwasher

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