Dishes not coming clean; food residues and film remain after a normal cycle, no error code displayed.

Safety first: Turn off the machine and allow it to cool before cleaning internal parts.

• Clean filters: Remove and thoroughly clean all tank filters and strainers.
• Clean spray arms: Remove upper and lower spray arms, flush under running water, and clear blocked jets with a toothpick.
• Check detergent dosing: Confirm that the detergent drum is not empty and that dosing settings match the chemical supplier's recommendation.
• Check wash pressure: During operation, observe spray arm rotation through the door (if possible). Slow or no rotation may indicate a weak wash pump that needs replacement.