How do I clean the spray arms if they become clogged?

For the top spray arm, remove the empty top rack, turn it upside down, and turn the locking nut counterclockwise to release the spray arm. Look for obstructions in the spray nozzles and flush them under running water if needed. For the bottom spray arm, remove the empty bottom rack, grasp and lift the spray arm, check for obstructions, and flush under running water if necessary.