How do I clean the spray arm nozzles?

To remove and clean the top spray arm, first remove the empty top rack, turn it upside down, and turn the locking nut counterclockwise to release it. Look for obstruction in the spray nozzles and flush them under running water if needed. For the bottom spray arm, remove the bottom rack, grasp and lift the spray arm, and flush the nozzles under running water. Reinstall by turning the locking nut clockwise or pressing until it snaps into place.