Question about LG 24 in. LD-12BW5 Free-standing Dishwasher

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LG dishwasher bottom arm not spinning

Our LG dishwasher is about 3 years old.  Some of the dishes on the bottom rack are not cleaning.  Especially pots or pans.  I have cleaned all the filters and spray arm.  I have just noticed that the bottom spray arm is not spinning. I moved it to a position prior to washing.  Once cycle complete the spray are is in exactly the same position.  Is this able to be repaired and how?

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  • Karen Berkey
    Karen Berkey Oct 02, 2008

    I have the same problem. After about 2 years, suddenly the dishes on the bottom rack do not get clean. No parts seem to be clogged. Maybe the arm on mine has stopped spinning as well. Can this be serviced?/

  • theyoungsoz Oct 14, 2008

    Same problem with the arm, is there a fix?

  • Anonymous Jan 05, 2009

    SAME PROBLEM EXCEPT MINE IS THE UPPER ARMS.  NEITHER ONE IS SPINNING AND DISHES ON TOP RACK ARE NEVER CLEAN.

  • Richard drew
    Richard drew Oct 25, 2014

    Hi, I have had similar issues and it has turned out to be the motor that controls the direction the water is to go. Pull off lower spinning arm and all the filters etc from the bottom. you will need a Phillips screwdriver under the whit plastic cover you will see a small semicircular guide, this is supposed to rotate during the cycle to direct the water to either the upper or lower spin arm. There is a small motor and a micro switch underneath the unit ( access is not for the faint hearted as it evolves major disassembly) but the motor is likely to be rusted/jammed. Replacement part is available for around $50

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Hi, I have had a similar problem and have found that the motor that controls the flow direction to either the upper or lower arm has seized due to small but prolonged water ingress over many years. Pull off the lower spin arm and run some water through it to prove it is not blocked. Next remove the filter and plate in the base of the dishwasher and remove the four Phillips head screws to move the ducting that feeds the water to the upper spin arm. Now you should be able to see a small semicircular plastic piece that channels the water to either the top or bottom spin arm. Look carefully at the position of the director and decide if it is in the right position to direct water to either of the spin arms, use this knowledge to help you decide if it is working okay. If you can select upper or lower cycles try them and check if the director moves to the right place.This is a good time to check the pump pressure. Run the machine, without rebuilding the insides, open the door during the cycle and you should find plenty of water splashing around and you can also check the director position.
Okay, assuming that the director is not moving it is likely that the little drive motor has had it. There is also a little micro switch beside the motor which may have failed but I believe that a siezed motor is most likely. Replacement motors are available for about $50.
Access to the motor is not for the faint hearted, it requires substantial disassembly but only a phillips head screwdriver is required to get it done. You will just have to follow your nose to pull it apart as it is a little too involved to describe what to do.

Posted on Oct 25, 2014

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Hi,


I have an older dishwasher also and recently my wife also complained about it not cleaning right... so me being the man I am tried in vain to clean the things... Bought new spray arms online and installed them in minutes...now the thing works like new... However I have also found that if the heating element goes bad then that also can mess things up bad... So I would buy new spray arms, and also check out the heating element to make sure it is working... Here is a tip that will help you with the online buying...

Dishwasher Spray Arms not Spinning

How to Buy Appliance Parts Online

A bad heating element causes many problems in dishwashers...

Dishwasher Problems The Heating Element not Working

Dishwasher Maintenance

heatman101


syte

Posted on Sep 29, 2010

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