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

Safety first: Switch off power before removing internal components.

• Review loading pattern: Ensure large plates do not block the lower spray arm and that tall items do not obstruct the upper arm. Avoid nesting bowls.
• Clean spray arms and filters: Remove and clean all spray arms and the sump filter assembly.
• Check water level: After filling, open the door carefully. Water should cover the sump filter. If low, inspect the inlet filter and hose.
• Use correct detergent and program: Use high-quality dishwasher detergent and select an appropriate program for heavily soiled loads.