SIGforum.com    Main Page  Hop To Forum Categories  The Lounge    LG Dishwasher - Intermittent Mechanical Whine when Running
Page 1 2 
Go
New
Find
Notify
Tools
Reply
  
LG Dishwasher - Intermittent Mechanical Whine when Running Login/Join 
Member
Picture of P250UA5
posted
Recent development, our dishwasher has started making a lot of noise when running. Sounds like it's from beneath, almost sounds like a whining power steering pump on a car.

Will provide the model number when I get home. Not sure if this is a pump/part that I can replace myself & avoid having to potentially replace the DW.




The Enemy's gate is down.
 
Posts: 16287 | Location: Spring, TX | Registered: July 11, 2011Reply With QuoteReport This Post
Green grass and
high tides
Picture of old rugged cross
posted Hide Post
I have been thinking about an LG TV but with all the washer and dryer, refrigerator and dishwasher problems with LG I am thinking not.

Sorry P250ua5, no help. Hope it is an easy fix.



"Practice like you want to play in the game"
 
Posts: 19961 | Registered: September 21, 2005Reply With QuoteReport This Post
Member
Picture of P250UA5
posted Hide Post
If the house hadn't come with it, an LG wouldn't have made the shortlist for DW, nor fridge or washer/dryer. We're Samsung on all our TVs except 1 Vizio that my wife's grandmother gave us & is in the master/rarely used.
Our Whirlpool Cabrio W & D have been great for over 10 years.

Frigidaire is another never again group for appliances. Had issues with the DW & fridge at our old house.

Once I have the LG model for the DW, hopefully I can come up with a parts schematic so I can try to narrow it down.
Will give me excuse to pull the DW & properly level it too. As it sits, the top drawer constantly tries to retract/won't stay out/open.




The Enemy's gate is down.
 
Posts: 16287 | Location: Spring, TX | Registered: July 11, 2011Reply With QuoteReport This Post
Member
posted Hide Post
quote:
Originally posted by old rugged cross:
I have been thinking about an LG TV but with all the washer and dryer, refrigerator and dishwasher problems with LG I am thinking not.

TV's I think you're fine with LG, same also with certain washer/drier models but, their fridges resemble smartphones. Way too many features that really end up complicating its operations.

As for dishwasher, we've had two Boschs, they were rockstars, recently moved and got a GE Profile along with a fridge, not quite as nice as the Bosch but, so far so good. Bosch arguably has the best assortment across a range of price-points, Fisher-Pakel I really like on the upper-end, especially like their dual-drawer feature.
 
Posts: 15195 | Location: Wine Country | Registered: September 20, 2000Reply With QuoteReport This Post
אַרְיֵה
Picture of V-Tail
posted Hide Post
A friend of mine, who owned a service business for high dollar import cars, used to wear a T-shirt that said "The bearings are shot."



הרחפת שלי מלאה בצלופחים
 
Posts: 31708 | Location: Central Florida, Orlando area | Registered: January 03, 2010Reply With QuoteReport This Post
Green grass and
high tides
Picture of old rugged cross
posted Hide Post
quote:
Originally posted by V-Tail:
A friend of mine, who owned a service business for high dollar import cars, used to wear a T-shirt that said "The bearings are shot."



Big Grin



"Practice like you want to play in the game"
 
Posts: 19961 | Registered: September 21, 2005Reply With QuoteReport This Post
Member
Picture of P250UA5
posted Hide Post
Model No is: LDP7808BD

Looking through the schematics, thinking the circulation pump, since the noise occurs at startup & not just when draining.

I'll try to take & post a video when I run it tonight




The Enemy's gate is down.
 
Posts: 16287 | Location: Spring, TX | Registered: July 11, 2011Reply With QuoteReport This Post
Member
Picture of Pyker
posted Hide Post
When my dishwasher started whining, I shut the kitchen door and turned the TV up. Never heard a thing. She gave up complaining after a while.


.
 
Posts: 2763 | Location: Lake Country, Minnesota | Registered: September 06, 2019Reply With QuoteReport This Post
Shall Not Be Infringed
Picture of nhracecraft
posted Hide Post
It's likely the bearings in the pump motor that are failing. I recently had to replace a failing motor in a 20 YO Kitchen Aid Dishwasher, but ended up replacing the complete pump/motor assembly as it was cheaper (by a lot...Like half!) vs. the price for the motor only. It went from sounding like a fork lift to whisper quiet, just like that! Wink


____________________________________________________________

If Some is Good, and More is Better.....then Too Much, is Just Enough !!
Trump 2024....Make America Great Again!
"May Almighty God bless the United States of America" - parabellum 7/26/20
Live Free or Die!
 
Posts: 9660 | Location: New Hampshire | Registered: October 29, 2011Reply With QuoteReport This Post
Member
Picture of Snapping Twig
posted Hide Post
On a dishwasher, the drain pump is the first thing to run at start-up. The second thing is the water valve, then once filled with water, the circulation pump.

I'd check the drain pump if this is at start-up.
 
Posts: 2861 | Registered: May 28, 2008Reply With QuoteReport This Post
Member
Picture of P250UA5
posted Hide Post
Took some video of the noise last night, still need to figure out how to post here.
It's almost immediately on startup, then a long pause, and starts up again.

quote:
Originally posted by Pyker:
When my dishwasher started whining, I shut the kitchen door and turned the TV up. Never heard a thing. She gave up complaining after a while.

Razz

quote:
Originally posted by nhracecraft:
It's likely the bearings in the pump motor that are failing. I recently had to replace a failing motor in a 20 YO Kitchen Aid Dishwasher, but ended up replacing the complete pump/motor assembly as it was cheaper (by a lot...Like half!) vs. the price for the motor only. It went from sounding like a fork lift to whisper quiet, just like that! Wink

Here's hoping it's that simple.

quote:
Originally posted by Snapping Twig:
On a dishwasher, the drain pump is the first thing to run at start-up. The second thing is the water valve, then once filled with water, the circulation pump.

I'd check the drain pump if this is at start-up.

Thanks, my mind was thinking the opposite, and from a quick browse last night, the drain pump is about 1/3 the price of the circulation pump.




The Enemy's gate is down.
 
Posts: 16287 | Location: Spring, TX | Registered: July 11, 2011Reply With QuoteReport This Post
Shall Not Be Infringed
Picture of nhracecraft
posted Hide Post
quote:
Originally posted by Snapping Twig:
On a dishwasher, the drain pump is the first thing to run at start-up. The second thing is the water valve, then once filled with water, the circulation pump.

I'd check the drain pump if this is at start-up.

Not all dishwashers are created equal...On my Kitchen Aid (by Whirlpool), provided the previous wash cycle completed (which is indicated on the concole of the top edge of the door), the first thing to 'run' is the water fill valve.


____________________________________________________________

If Some is Good, and More is Better.....then Too Much, is Just Enough !!
Trump 2024....Make America Great Again!
"May Almighty God bless the United States of America" - parabellum 7/26/20
Live Free or Die!
 
Posts: 9660 | Location: New Hampshire | Registered: October 29, 2011Reply With QuoteReport This Post
Never miss an
opportunity to STFU
posted Hide Post
I had a washer start to whine. I studied the problem for a while and saw it only occurred when I used a liquid detergent that foamed a lot, or when my wife put multiple packets of soap in the wash. Then foaming resulted in the circulation pump trying to pump aerated liquid. When I quit using the liquid soap, the issue stopped. Same with wife’s extra soap




Never be more than one step away from your sword-Old Greek Wisdom
 
Posts: 2295 | Location: SE Mich-- USA | Registered: September 10, 2002Reply With QuoteReport This Post
Member
Picture of P250UA5
posted Hide Post
quote:
Originally posted by greco:
I had a washer start to whine. I studied the problem for a while and saw it only occurred when I used a liquid detergent that foamed a lot, or when my wife put multiple packets of soap in the wash. Then foaming resulted in the circulation pump trying to pump aerated liquid. When I quit using the liquid soap, the issue stopped. Same with wife’s extra soap


No change there, been using the same tablets for months before the noise started.




The Enemy's gate is down.
 
Posts: 16287 | Location: Spring, TX | Registered: July 11, 2011Reply With QuoteReport This Post
Member
Picture of P250UA5
posted Hide Post
We'll see if this'll work, good video of the noise it makes.

https://photos.app.goo.gl/hBXypQsr4gL5bSP7A




The Enemy's gate is down.
 
Posts: 16287 | Location: Spring, TX | Registered: July 11, 2011Reply With QuoteReport This Post
Shall Not Be Infringed
Picture of nhracecraft
posted Hide Post
Doesn't sound that loud in the video...Mine literally sounded like a fork lift! Regardless, take the lower valance/sound insulating trim/cover off and get your head down on the floor. Maybe even get you hands under there and you'll be able to figure out exactly what it is...Just sayin' Wink


____________________________________________________________

If Some is Good, and More is Better.....then Too Much, is Just Enough !!
Trump 2024....Make America Great Again!
"May Almighty God bless the United States of America" - parabellum 7/26/20
Live Free or Die!
 
Posts: 9660 | Location: New Hampshire | Registered: October 29, 2011Reply With QuoteReport This Post
Member
Picture of P250UA5
posted Hide Post
Significantly louder than normal operation, for sure.




The Enemy's gate is down.
 
Posts: 16287 | Location: Spring, TX | Registered: July 11, 2011Reply With QuoteReport This Post
Member
Picture of 4MUL8R
posted Hide Post
May I assure you that the LG dishwasher is perfectly maintainable. If a pump were to stop working, I would simply order a replacement and install it. A little prior planning and you can set up a nice blanket to protect the floor, bring the unit out, tip it over, and work on either side or bottom. The engineering is very good.

I successfully removed a pivot pin from a Zyliss cheese grater that was stopping a drain pump from rotating. I was able to pull the pump cover, remove the impeller blockage, and put it all back together. Yes, it takes a bit of doing, but we're talking unscrewing a few panels for access, opening a few hose clamps, and pulling off an electrical harness.

It will be OK. You can do this.


-------
Trying to simplify my life...
 
Posts: 5273 | Location: Commonwealth of Virginia | Registered: January 15, 2007Reply With QuoteReport This Post
Member
Picture of P250UA5
posted Hide Post
Thanks for the vote of confidence, it's just down to figuring out if it's the $80 drain pump of the $235 circulation pump. Rather not order the wrong one unnecessarily.




The Enemy's gate is down.
 
Posts: 16287 | Location: Spring, TX | Registered: July 11, 2011Reply With QuoteReport This Post
Member
Picture of P250UA5
posted Hide Post
Update, DW had this error code this morning
I don't recall seeing a wash motor in the parts list I skimmed, will have to look more.




The Enemy's gate is down.
 
Posts: 16287 | Location: Spring, TX | Registered: July 11, 2011Reply With QuoteReport This Post
  Powered by Social Strata Page 1 2  
 

SIGforum.com    Main Page  Hop To Forum Categories  The Lounge    LG Dishwasher - Intermittent Mechanical Whine when Running

© SIGforum 2024