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I have a LG WM2016CW that has been front loading washer that has been vibrating/moving for the past 6 months or so. The shipping bolts are removed, I've replaced the 3 shock absorbers and the unit is perfectly level. I ran a load of towels today with the back opened so I could observe that the shock absorbers are all working correctly. They look fine. However, the unit continues to vibrate and the drum appears to cycle unevenly.
Could this be an issue with the drum bearings? If so I am thinking about replacing the entire rear drum assembly with this part: LG OEM Part #3045ER0023A
Thanks!
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More often than not the issue you explain, [the drum appears to cycle unevenly] is a broken support (spider) arm assembly. If the bearings were bad you would notice an oily like substance oozing from the rear near the motor on the tub. Check out this part and watch the video. LG 4434ER0003C Spider Arm Assembly - AppliancePartsPros.comThe spider arm is made from cast aluminum and will crack, break, erode or disintegrate. Due to a process called electrolysis, when aluminum contacts stainless steel, this occurs. Just like zinc on the hull of a ship the aluminum dissolves over a period of time.
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 1 user thanked brobriffin for this useful post.
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I removed the spider arm assembly, but it is in great condition. It's worn but not broken. The bearing ring spin smoothly and there are no noticeable leaks.
Any other ideas out there?
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1. Check the steel drive shaft where it connects to the spider arms and see if it is bent or loose. (add a picture of it if you are able) little hairline cracks where it connects to the arms may cause it to be out of line.
2. try reinserting it into the bearings and spin it to see if you can detect the wobble with the outer drum apart.
3. Check the drum itself to see if it has become damaged (oval shaped instead of round)
Good job by the way getting to this point.
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Here are some photos. 152SIC attached the following image(s):
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Rank: Member
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The shaft does not appear to be bent or misaligned.
Check the tub for true circular shape.
Check the rim of the tub where the spider bolts on to see if any part of it is bent or misaligned.
Check both the inner and outer bearings to make sure the inner rings roll smooth and have no play.
Check the stator assembly (K350) of the motor that is bolted to the back of the tub. Make sure it does not have large cracks in the plastic.
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Rank: Member
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Thanks for all your help, I will check out all of those parameters. The bearings are shiny, rotate easily and there is no leakage from them.
Also, before disassembling I ran a QC test mode. Upon entry of the test the WM2016CW is supposed to flash between In:80 and IU00. Mine flashed In:80 and IU02. I didn't see anywhere in the service manual where this was addressed?
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Rank: Member
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Check the tub for true circular shape. The tub is circular
Check the rim of the tub where the spider bolts on to see if any part of it is bent or misaligned.No part of that is bent or misaligned
Check both the inner and outer bearings to make sure the inner rings roll smooth and have no play.Those are in great shape
Check the stator assembly (K350) of the motor that is bolted to the back of the tub. Make sure it does not have large cracks in the plastic.There are no cracks in the stator assembly
Could this issue be a computer error where the RPMs increase too rapidly? I reassembled the washer and vibrations are still there, even stronger though.
I also tested the shock absorbers by hand and they still have plenty of friction. They have all been replaced within the past year.
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Do you still see the inner tub cycle unevenly? In other words does it appear to rotate closer to the plastic tub or does the gap remain the same all the way around?
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Yes, it rotates unevenly.
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