If the spray arm holes are blocked by any food residue, dishes may not be cleaned well due to improper water spray.
Make sure that the water jet holes are not blocked by food particles.
If any food residue blocks the spray arm holes, remove it with a pin or any sharp tool.

To avoid breaking the variable angle spray arm end sections, do not pull or manually rotate them.
Pull the upper rack forward. Make sure that the water jet holes are not blocked by food particles.
When cleaning is necessary, remove the upper spray arm by turning the nut on the bottom of the spray arm 1/8 turn counterclockwise and pulling down.

Remove food particles by rinsing or shaking the spray arm.
If any food residue blocks the spray arm holes, remove it with a pin or any sharp tool.

After removing the food residue, clean the spray arms holes under running water.
After cleaning the upper spray arm, press it up into place. Turn the nut 1/8 turn clockwise to make sure that the nut locks back into place.

After assembly, check whether the spray arms rotate freely.
Arms that cannot rotate freely as a result of obstructions or poor maintenance can cause water leakage from the door resulting in a malfunction or damage to property.