Dishwasher leaves greasy residue or a film on dishes; interior feels oily.

Safety first: Allow the dishwasher to cool before cleaning.

• 1. Clean filters and sump: Remove and thoroughly clean all filters and the sump area to restore proper flow.
• 2. Use a hot cycle: Run an intensive or high-temperature cycle with a dishwasher cleaner to dissolve grease.
• 3. Increase detergent: Slightly increase detergent dosage within manufacturer guidelines, especially for very greasy loads.
• 4. Check heating: After a hot cycle, open the door immediately. If the interior is not hot, the heater may be faulty and should be tested.

If grease persists despite cleaning and hot cycles, have the heating system inspected.