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LG LDS5811 -- repair again, or junk?  Rating:  Rating
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 Posted: Tue Oct 19th, 2010 07:47 am
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nikev
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Hi all,

I have an LG 5811 dishwasher that is now 5 years old. In the five years we had it is has had

a) drain pump replaced in 2008 (bad draining, excessive noise during drain)
b) sump assembly and drain hose replaced in 2009 (excessive noise during wash)
c) various small breakages of rack parts

and now

d) drain pump has become noisy and probably needs replacement again.

My question is

i) whether there's some other issue underlying these problems that the repair techs might have missed, that is causing the machine to fail. It may be that I just have a lemon, but I thought it might be well to look outside the box (unlike most techs I have ever met, who just replace the part that's making noise, rather than solve the problem).

ii) I'm thinking of buying a Bosch by way of replacement, because there are some good deals to be had on a 55 series machine at my local dealer. I thought about Miele, but they are too expensive here in Canada (double the cost of Bosch -- could just buy an extended warranty, or even a new machine!)

Any thoughts would be welcome.

-- Nike

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 Posted: Tue Oct 19th, 2010 10:21 pm
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longtimer
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My opinion is to get rid of that POS LG dishwasher.
They were quiet but I have had terrible results keeping them running.

I still have a couple of them and having a hard time selling them with my opinion of them.


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 Posted: Tue Oct 19th, 2010 11:52 pm
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nikev
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Thanks for the reply.

Just out of curiousity, what sort of problems have you had with the LG machines? Mine was pretty much silent at first but gradually got very noisy, and had issues draining. Most of the problems seem to be mechanical things with the drain pump and the sump assembly.

On the other hand, the machine never leaked, and the electronics so far have been reliable.

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 Posted: Wed Oct 20th, 2010 12:18 am
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john63

 

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nikev wrote: Hi all,

I have an LG 5811 dishwasher that is now 5 years old. In the five years we had it is has had

a) drain pump replaced in 2008 (bad draining, excessive noise during drain)
b) sump assembly and drain hose replaced in 2009 (excessive noise during wash)
c) various small breakages of rack parts

and now

d) drain pump has become noisy and probably needs replacement again.

My question is

i) whether there's some other issue underlying these problems that the repair techs might have missed, that is causing the machine to fail. It may be that I just have a lemon, but I thought it might be well to look outside the box (unlike most techs I have ever met, who just replace the part that's making noise, rather than solve the problem).

ii) I'm thinking of buying a Bosch by way of replacement, because there are some good deals to be had on a 55 series machine at my local dealer. I thought about Miele, but they are too expensive here in Canada (double the cost of Bosch -- could just buy an extended warranty, or even a new machine!)

Any thoughts would be welcome.

-- Nike


At five years---can go either way (repair or replace).

The SUMP ASSEMBLY should be replaced with the latest version (AJH31248604)

Remove the front panel of the door---and tape the WIRE LOOM from the bottom of the door up to the DETERGENT DISPENSER ASSY with electrical tape.

If repairing---consider replacing the DOOR GASKET (3920DD3005A) as it gets a bit tattered near the lower rack area. No tools req'd. Pull off original gasket & install new gasket.

 

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 Posted: Wed Oct 20th, 2010 01:06 am
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longtimer
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The issues I have had are

leaking
wash ability
little parts breaking
long time to get parts
unreliable

any many ways it looks like it is made well and I originally thought
it may give Bosch a run for it's money.

I was way wrong on that.


 

Last edited on Wed Oct 20th, 2010 01:08 am by longtimer

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 Posted: Wed Oct 20th, 2010 06:06 am
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john63

 

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longtimer wrote: The issues I have had are

leaking
wash ability
little parts breaking
long time to get parts
unreliable

any many ways it looks like it is made well and I originally thought
it may give Bosch a run for it's money.

I was way wrong on that.


 


LEAKING:

What location?

WASHABILITY:

If the SERIAL NUMBER of the dishwasher is 804 or older (803 / 802 / 801 etc) this is due to the WASH MOTOR running at a slower RPM. Newer WASH MOTORS in the AJH31248604 SUMP ASSY will not have this issue. Any cleaning complaints on the newer dishwashers will be due--in large part--to the *phosphate ban* in dishwasher detergents. Others can be identified as the usual user mistakes, such as:

1) Not using RINSE AID

2) Improper loading of d/w--wash arms restricted or *HEAVY* food residue on plates / cookware.

3) Water Heater temperature set *super low* or an *instant water heater* is used for the home. Instant water heaters are growing in popularity and not surprisingly---poor wash complaints are as well. Instant heaters *cannot* deliver hot water to most modern dishwashers (water flow during the fill cycle is too slow to "turn on" the instant water heater).

4) Incorrect cycle selected (.i.e., "short wash" selected when "normal" / "Power Wash" or "Soak" should have been selected)

5) Generic dishwasher detergent was used---also--d/w detergent does not have an infinite shelf-life and should be used within a few months of purchase. Avoid purchasing *bulk quantities* of d/w detergent (cleaning effectiveness degrades over long periods of storage).

LITTLE PARTS BREAKING:

Dishwasher rack tine supports? Yes--does happen. Replace as needed. Cheap inventory--stock up on these small parts.

If you're a selling dealer---win your customer's loyalty by having the foresight to *give them* a free set of these small breakable items. They'll appreciate your presence-of-mind doing so---which allows them the ability to correct any nuisance problem with tine support clips--by themselves.

LONG TIME TO GET PARTS:

If you are a selling dealer and/or authorized servicer----parts take 48 hours to receive. Stocking inventory allows same-day resolution. I have NEVER found this to be the case.

UNRELIABLE:

Again---if your sales stock is older than SERIAL NUMBER *805*---this will be a problem.

All LG dishwashers built after this date were a vast improvement over the 2004-2007 (and early '08) models.

Improvements to the LG dishwasher were agonizingly slow to occur during these years but came at a rapid succession for models built during much of 2008.

If you employ delivery / installers crews----it is imperative that they be properly trained on the *correct* installation procedure (no "shortcuts" during an install). It is very common to find kinked / crimped water supply & drain hoses. This causes poor wash results (improper fill of fresh water and/or incomplete draining of dirty wash water.

***************************************************

<<<<any many ways it looks like it is made well and I originally thought
it may give Bosch a run for it's money.>>>>

Not that long ago---Bosch dishwashers had big problems.

Shorted cycle selector (buttons at top of door) which caused a chain-reaction of other component failures. Anyone remember those?

Like LG--Bosch resolved to correct these shortcomings. And succeeded.




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 Posted: Wed Oct 20th, 2010 04:01 pm
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nikev
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Dear John 63:

Thanks for the informative reply.

My LG is indeed very old stock -- I got it in Dec 2005, which I guess is when they were having problems.

Since you seem to be well informed about such things, can I ask a few specific questions?

i) I got the sump assembly changed in Jan 2010, and it is the new version. The pump motor is definitely different -- it even sounds a bit louder (I guess this is the increased RPM).

ii) The door gasket seems to be okay.

iii) The drain pump was changed in 2008. Now the replacement one is acting up. Do you know if the spec on the pump changed since 2008? If the original pump was underspecified, and the new one is better, than I would be comfortable with replacing it, but if it's just the same old part which failed before, then perhaps I would be more reluctant.

I'd be grateful for any information you might have about this. Thanks in advance.

-- Nike

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 Posted: Wed Oct 20th, 2010 04:27 pm
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nikev
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Just to be clear -- I am trying to decide whether fixing the drain pump will be enough to keep the washer going for any length of time, or whether this model has some other underlying issues beyond the sump (fixed) and drainage. If there's some system reason that causes the drain pump to keep failing, that would be good to know.

Thank again,

Nike

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 Posted: Thu Oct 21st, 2010 05:16 am
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john63

 

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The SUMP ASSY *should* be the newer version. Some have posted on this forum that they were still getting the older version from sources other than LG.

DRAIN MOTORS *rarely* fail in the LG dishwashers--I cannot recall the last time that I had a failure. On the other hand--I've replaced *countless* SUMP ASSYs due to a failing WASH MOTOR.

Remove the DRAIN MOTOR and inspect for debris--such as glass shards or solid food particles. Replace the motor only if needed.

All LG dishwasher DRAIN MOTORS are identical. No changes were made to these motors during the models built from 2004 to the present.

 

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 Posted: Thu Oct 21st, 2010 05:34 am
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Scottthewolf

 

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Why does everybody want to rush out and buy these foreign made pieces of junk like  LG, Fisher & Paykel, Bosch, etc?

For years Kitchen Aid and Whirlpool made the best dishwashers on the market and they still are the best dishwashers on the market. 

I vote that you junk your LG dishwasher and replace it with a Whirlpool or Kitchen Aid dishwasher.



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 Posted: Thu Oct 21st, 2010 05:51 am
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john63

 

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Thanks for your intellectual input Scott. A real help...

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 Posted: Fri Oct 22nd, 2010 07:28 am
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nikev
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John,

Thanks for the detailed information. I did eventually manage to clear whatever was impeding the drain pump, and it seems to be working correctly now.

However, I am a bit confused about one thing. I cannot seem to figure out how to replace the one large piece of insulation, which is a narrow rectangle that seems like it should go at the front of the machine, under the kick board. However, the cut outs in the felt seem to be wrongly placed, and I cannot get it to fit. I looked at the picture in the service manual, but the piece I have is a different shape from the one that's shown.

Obviously something is not quite right, as there's some motor noise leaking from the under the machine at the front.

Is there some trick to doing this?

-- Nike

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 Posted: Fri Oct 22nd, 2010 01:36 pm
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john63

 

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At the edge of the foam sound deadener---there are small square cut-outs.

These should be facing downward and installed into the area where the leveling legs are.

 

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 Posted: Fri Oct 22nd, 2010 06:49 pm
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denrayr
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ive had to replace a couple of drain pumps due to worn bearings. ive also had broken check valves cause drainage issues. as far as leaks go ive had a couple leak from the sump assembly and had a few machines grow some funky stuff in the vent mounted on the left side of the tank causing dripping out the front of the door. ive also seen many wood floors damaged by dry cycle condensation dripping out of the inner door vent.



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 Posted: Fri Oct 22nd, 2010 08:06 pm
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john63

 

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<<<<ive also seen many wood floors damaged by dry cycle condensation dripping out of the inner door vent.>>>>
 
*********
 
I've seen very few.
 
LG dishwashers built from 2004 thru early 2007 did not have an external DUCT vent system.
 
When the DUCT TUBE was re-designed a 3rd time---this caused 2 to 5 droplets of water to get onto the floor. Not good for wood flooring. This new DUCT was *externally* vented and was rather quickly modified again--having an outlet at the bottom of the door which "turned" 90 degrees--preventing droplets of water from falling onto the floor from the DUCT TUBE during the dry cycle. 
 
**********
 

<<<<ive had to replace a couple of drain pumps due to worn bearings.>>>>

**********
 
I have *never* had this---in approx 6 years of LG dishwasher service.
 
LG washer drain motors---yes.
 
**********
 

<<<<as far as leaks go ive had a couple leak from the sump assembly and had a few machines grow some funky stuff in the vent mounted on the left side of the tank causing dripping out the front of the door.>>>>
 
***********
 
The FLOAT ASSY on the left side of the d/w tub *can* become contaminated from well water (iron in particular) and cause a *false* hall sensor reading/signal to the main board--which would then cause an overfill of water in the tub. I've replaced problably 3 FLOAT ASSYs. Not too common an occurence.





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 Posted: Mon Oct 25th, 2010 09:47 pm
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longtimer
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I am a LG Dealer and fell out of love with their dishwashers quickly.
And they were pre 2007.

Once I experience problems consistently,
I am moving on.
Not taking a chance of pushing this on my customers.


I have not given LG another try since. So they may be good now.
I sell many Bosch and they did not give me as many problems.

the economics did not make a lot of sense either, the Bosch always came in at a lower price with programming.

Parts that are in stock do come quickly, I had several pieces scrapped because lack of parts coming in a reasonable time period.

I hate installing dishwashers twice.


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