Upper rack does not clean well; items on top rack remain dirty while bottom rack is cleaner.

Safety First: Turn off power before removing spray arms.

Steps:

• Clean upper spray arm: Remove the upper spray arm and clear all jets with water and a toothpick.
• Check feed tube: Inspect the vertical feed tube and manifold that supplies the upper arm for cracks or disconnections.
• Rack engagement: Ensure the upper rack is properly seated so its rear manifold engages the water supply at the back of the tub.
• Pump performance: If upper cleaning remains poor, the circulation pump may be weak and require replacement.