Dishwasher runs but dishes come out dirty or with food residues, especially on the top rack.

Safety first: Switch off power before removing spray arms or working inside the tub.

• Review loading pattern: Ensure large plates or trays are not blocking the rotation of spray arms or the path of water to the upper rack. Avoid nesting bowls.
• Clean spray arms: Remove and thoroughly clean all spray arms, clearing every jet.
• Check filters: Clean all filters to maintain strong water circulation.
• Verify detergent dispenser: Start a cycle and check mid‑way if the dispenser door has opened and detergent has been released. If not, the dispenser or its latch may be faulty and require replacement.
• Check water temperature: At the end of a hot program, open the door carefully. The interior should be hot and steamy. If not, suspect a heating issue (see heating-related errors) and have the heater/circulation pump checked.
• Use correct detergent and program: Use high‑quality dishwasher detergent and select an appropriate program for heavily soiled loads.