Dishwasher runs but dishes come out dirty, with food residues and film left on surfaces.

Safety first: Switch off power before removing internal parts.

• Clean filters: Remove and thoroughly clean the sump filter and coarse filter under hot water to restore proper water flow.
• Unblock spray arms: Remove upper and lower spray arms. Rinse under running water and use a toothpick to clear blocked jets. Reinstall securely.
• Load correctly: Avoid nesting dishes and blocking the spray arms. Follow Iberna loading diagrams in the manual.
• Use correct detergent: Use quality dishwasher detergent and ensure the dispenser opens freely. Avoid mixing tablets with short eco cycles if performance is poor.
• Check circulation pump: If spray pressure seems weak even after cleaning, the circulation pump may be worn and require replacement.

Run a hot intensive cycle after cleaning to flush the system.