Grundig Extended Cycle Due to Heating or Sensor Issues

Dishwasher display shows unusually long cycle times or cycles take much longer than indicated.

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Safety Warning

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

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Possible Causes

Heater not reaching target temperature, NTC sensor misreading temperature, Very cold inlet water, Heavy soil detection extending wash

How to Fix / Troubleshooting

Safety first: Disconnect power before testing heater or sensors.

  • Check inlet water temperature: Run the hot tap at the sink until water is warm before starting the dishwasher to reduce heating time.
  • Verify heating: During a hot program, open the door carefully mid‑cycle to check for hot, steamy air. If not present, suspect a heating fault.
  • Clean sensors and sump: Clean the sump and filters to ensure accurate turbidity and temperature sensing.
  • Heater and NTC test: If cycles remain excessively long and water is not hot, have the heater and NTC sensor tested and replaced if faulty.
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Repair Difficulty

Hard 4/5

Required Part

NTC Temperature Sensor
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