Top rack dishes are not getting clean while bottom rack is mostly fine.

Safety: Turn off power before removing internal components.

• Clean upper spray arm: Remove the upper spray arm and clear all jets. Rinse thoroughly and reinstall.
• Inspect feed tube: Check the plastic feed tube running up the back or side of the tub for cracks or disconnections. Ensure it engages properly with the pump outlet and upper arm.
• Check rack height and loading: Ensure the upper rack is properly seated and not blocking the spray arm rotation.
• Assess circulation pump: If upper wash remains weak, the pump may not be generating enough pressure and may need replacement.