Dishwasher runs but dishes come out dirty; food residues remain and spray arms appear weak.

Safety first: Turn off power and water before removing parts.

Step-by-step checks:

• Clean filters: Remove and thoroughly clean all filters in the sump.
• Clean spray arms: Remove upper and lower spray arms. Rinse under running water and use a toothpick to clear blocked jets. Ensure the arms rotate freely when reinstalled.
• Check water level: During the wash phase, open the door briefly. Water should cover the filter area adequately. If low, inspect inlet filters and pressure switch as in E1/E5.
• Inspect circulation pump: If spray remains weak, the pump impeller may be worn or partially blocked. Access the pump, clean the impeller, and replace the pump if blades are damaged.

Use high-quality detergent and correct program selection for heavily soiled loads.