Dishwasher runs for an unusually long time; cycles seem to never finish.

Safety first: No hazardous disassembly is required for basic checks.

• Check water temperature: Run hot water at the kitchen sink before starting the dishwasher so it fills with warm water, reducing heating time.
• Clean sensors: Clean filters and run a dishwasher cleaner to remove film that may affect turbidity and temperature sensing.
• Observe pattern: If every cycle is excessively long regardless of load, the NTC or turbidity sensor may be misreading. Have these sensors tested and replaced if necessary.
• Program choice: Eco programs are designed to run longer. Try a standard or quick program to compare behavior.

If cycles still run abnormally long, a control board or sensor calibration issue may require professional service.