Model #LDS4821ST LG dishwasher

  • Exploded View Parts
    3 Results
  • Exploded View Parts 2
    3 Results
  • Tub Assembly Parts
    3 Results
  • Rack Assembly Parts
    3 Results
  • Panel Assembly Parts
    3 Results
  • Door Assembly Parts
    3 Results
  • Sump Assembly Parts
    3 Results

Troubleshooting

Error Codes

Error Code:

Condition:

Check/Repair:

Question and Answers

Q:

i have an lg dishwaser model #LDS4821ST in the middle of the cleaning cycle i get a LE error on the display what does that mean

A:

Thank you for your question and I understand your concern.

The "LE" error code means a motor error. The motor is working abnormally. This could be caused by a loose wiring connection, locked up motor or impeller, faulty motor or possibly a faulty control board.

I highly recommend calling a service technician to diagnose and repair your LG dishwasher.

You can have it repaired at your home by a Sears technician. Here is a link for the website: Sears Home Services .

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Joey S -
Sears Technician
April 13, 2011
Q:

Not cleaning

A:

Hi Kevin,

Thank you for submitting a question to Manage My Life.

I know how frustrating it can be when appliances do not function properly.

If you are sure the top spray arms are free of debris and are not binding, you will need to run a test mode. I am including an image below that will step you through this. Remove the lower spray arm, spray arm holder and filter assembly, and then run the test. NOTE: Make sure you allow the dishwasher to completely fill (when you press the rinse button the fourth time) with water during fill portion of test. I also included an image below that shows the parts you need to remove and the check valve.

During the test when you press the rinse button the tenth time the check valve should move one direction, and the when you press the rinse button the eleventh time it should move the other direction. If not check to see if the check valve is in a bind, if not you may have a bad diverter motor. You may have to manually close the door switch to run these checks.

If you do not feel confident repairing this problem yourself, then you can have it repaired at your home by a Sears technician. Here is a link for the website: Sears Home Services .

I hope this is helpful. Check the things I have covered here and if I may be of further assistance as more details become available, please reply to this post.

Thanks again for using Manage My Life.

Landell

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Landell -
Sears Technician
May 23, 2011
A:

Hi Kevin, You can use a screw driver to flip the latch assembly up. See the image below. Just press on the upper portion and it will “make” a micro switch inside the latch assembly. I hope this is helpful. If I may be of further assistance as more details become available, please reply to this post. Thanks again for using Manage My Life. Landell

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Landell -
Sears Technician
May 26, 2011
A:

Hi Kevin, You were not specific as to whether or not the check valve was moving. In my initial answer to you, I wrote; During the test when you press the rinse button the tenth time the check valve should move one direction, and the when you press the rinse button the eleventh time it should move the other direction. If not check to see if the check valve is in a bind, if not you may have a bad diverter motor. At this point I must assume it is moving and there is a blockage between the sump assembly and the upper spray arm. You state you have checked the spray arm and it is free from blockage or impingement. Disconnect the water guide at its attachment to the sump assembly and start a cycle. With the door switch manually made keep the door cracked just enough to see if the dishwasher alternates between lower spray and forcing water out where the water guide was attached. Note: The lower spray arm and the upper spray arm do not operate at the same time. If water is not coming out of both alternately, I recommend replacing the sump assembly. Thanks again for using Manage My Life. Landell

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Landell -
Sears Technician
June 02, 2011
A:

Hi Kevin, Here is one more thing we need to check. Place an upright cup in all 4 corners of both racks, top and bottom. That is a total of 8 cups. Then start a normal cycle. Allow the dishwasher to fill, and then go for about 10 minutes of the first wash. Stop the dishwasher and open the door. Let me know how much water is in each of the cups. Thanks again for using Manage My Life. Landell

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Landell -
Sears Technician
June 03, 2011
A:

Hi Kevin, From your description it does not sound like the bottom spray arms are turning either. As I re-read your previous posts, it sounds like this unit sprays in test but not in regular cycles. This may prove to be a very difficult situation to diagnose. I highly recommend having a trained service technician evaluate this problem. You can have it repaired at your home by a Sears technician. Here is a link for the website: [Sears Home Services | http://www.searshomeservices.com?sid=MMLxexpertxmerch ] . The next checks we will need to make will require the use of a volt/ohm meter and checking live voltages. If you have a meter and are comfortable making live voltage checks, reply to this post and I will be happy to assist you further. Thanks again for using Manage My Life. Landell

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Landell -
Sears Technician
June 06, 2011
A:

Hi Kevin, You will need to gain access to the main control (PCB). Leave all wiring in place. I am including an image below with a wiring diagram and disassembly instructions. ALWAYS UNPLUG OR DE-ENERGIZE ELECTRICAL EQUIPMENT BEFORE REMOVING COVERS OR ATTEMPTING SERVICE. BE CAREFUL AND WEAR APPROPRIATE HAND PROTECTION WHEN WORKING AROUND SHARP METAL PARTS. Once you have access to the PCB, you will have to manually close the door switch, and start a wash cycle. Remember to reapply power to the dishwasher. I recommend having towels handy in case the door seal does not stop all of the water. You will then need to check BL4 yellow to the red coming off the door switch. There is a program chart that will show when voltage is applied to the vario motor. Most likely if the spray arms work in test but not in regular cycles, the PCB will be the culprit. You may use the link below to purchase the main PCB. Please perform the diagnostic tests detailed above and report back with your findings. I will be looking forward to assisting you again in the near future. Thanks again for using Manage My Life. Landell

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Landell -
Sears Technician
June 07, 2011
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