Question about LG 24 in. LDS 5811 Built-in Dishwasher

2 Answers

Lg dishwasher part unknown

I was thinking about replacing motor on dishwasher and there was a small spring that went over shaft of motor on bottom side. It was bent and worn and was curious if you've seen it and whats it for? I am getting a E1 code and there are no leaks so im assuming its something to do with the motor. The unit fills with water then you hear the motor cycle on a few times before kicking up the E1 code. What do you think?


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  • Chaz G
    Chaz G Dec 12, 2008

    I wish i knew, i got it at a garage sale. The model number is lds 5811st but the tag is missing off the machine. I have no idea how old it is or what the serial number is. Thanks for your help.

  • Chaz G
    Chaz G Dec 13, 2008

    Yes it must be older model b/c i pulled off door and saw the black tar stuff. No wires were burned through i insulated them to prevent any damage. I put the high loop in the drain hose which fixed the errors. I get no error codes now when running the unit but its like its not really washing. The spring i found was when removing the motor from bottom of unit, it was just sitting on shaft of motor.I will try to post picture later today. The unit is not washing though, you hear the motor cycle on 3 to4 times before it can begin its cycle. Sounds like its not getting enough water once it does start it makes a low growling sound but it doesnt sound mechanical. To me it seems like there is a air/water problem but i guess could be motor. Any more advice would be great!

  • Chaz G
    Chaz G Dec 13, 2008

    I did not see any shavings or black stufff, but the way the motor is assembled its stamped shut and would require drilling to open it up and take alook. I think i can get motor for about 67 bucks online. I will go ahead and replace it and post back to let you know if fixed it.

    Thanks for all your prompt help.


  • Chaz G
    Chaz G Dec 13, 2008

    DO you happen to know the part number for the gasket thats on the door? I am getting a slow leak at each corner of the dishwasher. Front side.

    Thanks again.
    the model of dishwasher agian is lds5811st

  • Chaz G
    Chaz G Dec 18, 2008

    OKay need more advice, i replaced the motor and im still hearing the same noise as before, But this time im getting an E1 error. IM assuming it has to be the motor water seal leakage of sump assembly as stated in repair manual but not sure what gaskets to replace. There are a few within the sump assembly and all look pretty worn or thin.

    ANy help would be appreciated as im sinking more into this thing then its worth.

    Merry Christmas

  • Carl Schulzetenberg
    Carl Schulzetenberg May 11, 2010

    Please send me your full model and serial number, and aprox. date of install.


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Yes i guess it is an older model b/c i took of the front panel and saw the tar like stuff that heats up and burns the wires. I covered the wires that were sticky and starting to get stuck to the black mat with some insulating tape. I am now not getting any e1 or 1e errors. I put the high loop on the drain hose which fixed those errors. The motor spins freely by hand and the small spring which came off the shaft was after i took the motor out from the bottom. IT looked like it was just resting on the shaft. Not sure of its purpose or if it was there by mistake. The symptons now are the motor turns on like 3 to 4 cycles before it sounds like it gets enough water to go but then it doesnt really work. It will move the water around b/c i can hear it inside but it sounds like a air / water whirling noise is happening with the motor. Sort of like a low growling noise but it doesnt sound mechanical. Hard to explain, and im not sure if the motor is workign right or if its a water / air problem. Any more advise would be great. I can send you a pic of the spring thing that was on the motor if you want, guess i would need email dont see a way to post the picture here. Thanks for your help i look forard to hearing from you.


Posted on Dec 13, 2008

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If you got this at a garage sale and it has no model / serial sticker on it, it means the customer most likely had several problems with the unit and got it replaced no charge, but the model / serial number had to be sent in "to verify that the product was scrapped". That being said, on to your problem:

IE would be an inlet error, and E1 would be an error code which usually indicates the water has left the tub too early, as if the drain hose did not have a high loop in it, allowing the water to leak out the drain during the wash cycle. The sensor on the motor sees the increased speed of the motor, due to loss of resistance because the impeller spins more freely when in air than water, increased RPM will thus give the E1 error.
So, that may be all it is, but the reason I asked for the serial number is that early production models used an insulating mastic inside the door which became soft and allowed the wiring to become embedded in it. This resulted in the insulation on the wiring dissolving and shorting out or opening up (breaking) some wire(s) inside the door. That would result in various error codes, depending on which wire(s) were affected.
Take the door apart and look to see if the wires are embedded in the insulation. The fix is technically to replace the stainless steel inner door panel with one that has the newer insulation type and replace the entire wiring harness. That's fine if your unit was under warranty, but for you, splice in new wires and put something in the door which will prevent the wires from again becoming embedded in the door's black insulating mastic.

It is unclear to me if the spring you are referring to was found on the very bottom of the motor (as if you look at it from underneath the dishwasher) or if it was found from the inside, when you removed parts and finally got down to the motor. (I assume if that is the case, you discovered that the end of the motor shaft has a left hand thread) I suspect your motor is still fine. Look for the door insulation problem or a break in a wire where the wires pass out the door at the bottom of the door.
I hope with all this info we can get a FixYa out of this problem. It would be nice if you can send a comment to let me know what you found and how things turned out. PS. It is very important to use a rinse aid to get acceptable drying from this dishwasher, and of course you should have soft water.

Posted on Dec 13, 2008

  • Carl Schulzetenberg
    Carl Schulzetenberg Dec 13, 2008

    Did you see any indication of black powder or dark filings or chips on the underside? That might indicate that it is one of the units which had motors which had problems with the adhesive used on the magnets and make noise due to that. Don't think you have a water / air problem, as that should give the E1 code. (motor RPM's higher than they should be) I think with the noise you indicate you may want to replace the motor after all.

  • Carl Schulzetenberg
    Carl Schulzetenberg Dec 13, 2008

    WMBuyer Model: LDS5811 WW, BB, ST; LDF7810 WW, BB, ST; LDF7811 WW,BB, ST LGE Model:LD-6090 WB, BB, TB; LD-6105 WB, BB, TB; LD-6100 WB, BB, TB Buyer Name:LGEUS Effective Date:1 JULY 2005Applicable Serial No: 407KWXXXXX -506KWXXXXX Subject: Door Gasket Design ImprovementOld type (3920DD3003A) New type (3920DD3005A) Production has been applied since July 2005.3. Improvement (See Gasket Cross Section views below.)8.7 mm9.7 mm1. Phenomenon: Water leakage from inner door.2. Reason: Misalignment of the door due to improper leveling or externalshock. Improved part has a new Part Number. (Old Part Number: 3920DD3003A New Part Number: 3920DD3005A)New type improves reliability.※When servicing, be sure to verify the new part number because theshapes are similar and may be confused.※The old parts (3920DD3003A)should be scrapped.

    The above is cut and paste from a LG service bulletin. Motor is part number 4681ED1004A and $67 would be a great price if it is a new, unused part.


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