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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...
Hello- Yep- it's toast. A small seal on motor shaft failed, causing water to destroy bearings. Motor is about 100$. Installation instructions available if you choose that route. Let me know if this info helps- have more if needed.- Thanks - Ed
Make sure the water is turned on to the machine, if it is then it sounds like a faulty water fill valve, just replace the fill valve, they can sometimes be cleaned but I would never trust one, they can always stick in the on position later and flood your house. Check to see if the valve is geting 120v ac before replaceing the valve, if it's getting voltage and no water is flowing then the valve is bad. You will need to borrow or buy a multi-meter for this test.
if you have a torx 20, and torx 15 screw driver, you an remove the screws from the top plate of the wash motor, and underthere youll see another t15 screw converingthe "chopper" assy, sounds as if a seed, of chicken bone, perhaps apiece of glass hasgottne down there
Motors for tall tub whorlpools are over two hundred dollars. If its less than a year then its under warranty. You did not indicate model. If you can get back to me I'll look more in to seeing if it is feasable to repair or replace.
You might have something bouncing around in the wash pump inlet in front of the "chopper". Remove the lower arm and upper arm supply tube. Remove the screws then remove the screen, accumulator and inlet protector. You should see debris in front of the screen.
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.