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I had a similar issue, I am not sure if this will your issue or not, but it is worth a shot.
Mine threw the Vario motor error about 8 months into use and it was actually the impeller that pumps water around from the base of the unit. It was making contact with the filter/cover over it, causing it to spin too slowly and throw the error.
Both dish drawers had to be removed and about 8 screws in that secure the filter in the bottom of the unit. When you get the cover off check to see if anything is impeding the impeller, If not, Look at the bottom side of the cover. Mine had white streaks in a circular fashion. I scraped off the white plastic swirls with a chisel and verified the top of the impeller was smooth as well. Reassembled and it worked again.
you need to uninstall dishwasher and tip it backwards on the bottom of the dishwasher you will see a square panle remove the 2 screwsand replace the part then proceed in revers to put together
The LG dishwasher family has a cool feature that alternates the full wash/spray power between the upper spray arms and the lower arm.
It is called Vario - with a motor that drives a check valve to route the water.
So, If you just open the dishwasher while it is running and look to see if all the spay arms are spinning, you will be disappointed.
Now, if you are having problems with dishes not getting cleaned, we need to take the next step. Post back what you find.
Good Luck!
The LG LDF6920 dishwasher has an innovative "Vario" motor/check valve. It switches between full power spray on the upper arms and the lower arm. So, if you are looking inside the dishwasher to see which arm is spinning, you just have not opened it when the lower arm is turning.
if the root problem is that your dishes are not getting clean with this water conserving DW, go out and buy a name brand detergent powder - like Electrosol or Cascade. And use less powder then you have been using.
Good Luck!
No filter in these units. It is possible that sand has gotten into the sump assembly and is not allowing the vario motor to properly switch between the upper and lower spray nozzles.
Can you tell me if the problem was fixed by the original posters?
The multi-level wash direction feature uses a check valve just below the mesh filter asembaly and is driven by a vario motor underneath the check valve. By removing the mesh filter (10 screws and the lower spray arm) you expose the check valve. It is very close to the pump that empties the water through the drain hose.
High probability problems:
-The Check Valve could be jamed/stuck.
-Also, the Vario Motor could have failed
Please respond back with the findings on this problem. Thanks!
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