Dishwasher runs for an unusually long time or seems stuck on one part of the cycle.

Safety first: Allow the cycle to finish before opening the door; disconnect power before internal checks.

Steps:

• Check water temperature: Run hot water at the sink before starting the dishwasher to ensure a hot fill.
• Observe heating: During a hot program, carefully feel the outer door after 20–30 minutes; if cold, the heater may not be working.
• Run cleaning cycle: Use a dishwasher cleaner to remove grease that may affect sensors.

When to call a technician: If heating is not occurring or sensors are faulty, professional diagnosis of the heater, NTC, and control board is required.