Question about Dishwashers
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.?
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Posted on Jan 02, 2017
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
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
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
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
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