Dishes are not coming out clean; food residues remain after the wash cycle.

Safety first: Turn off power before removing spray arms.

• Clean filters: Remove and thoroughly clean the tank filter and sump strainer to ensure proper water circulation.
• Clean wash arms: Remove upper and lower wash arms. Rinse under running water and use a toothpick or small brush to clear blocked jets.
• Check pump performance: During wash, observe spray intensity (with door interlock test mode if available). Weak spray may indicate a worn impeller or pump that needs replacement.
• Verify detergent: Ensure correct type and dosage of detergent for Comenda dishwashers. Adjust dosing pump if necessary.