• Check that the wash programme is suitable for the load.
• Scrape off excess food from dinnerware before loading.
• Check that the spray arm is able to rotate freely.
• Check that the detergent is in the correct compartment.
• Check that you are using the right amount of detergent.
• Check that the detergent is recommended for domestic dishwashers.
• Check that the spray arms are clean.
• Check the filters are clean. Refer to user manual.