Grundig Thermal Cut-Out / Overheat Protection Activation

Machine turns off by itself during brewing or shortly after starting.

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.

Possible Causes

Blocked ventilation, Thermoblock overheating due to scale, Faulty temperature sensor, Defective main control board

Safety first: Allow the machine to cool for at least 30 minutes before restarting.

Improve airflow: Move the coffee maker away from walls or cabinets to ensure proper ventilation.
Descale the machine: Run a complete descaling cycle to improve heat transfer and reduce overheating.
Avoid continuous cycles: If brewing many cups in a row, allow short pauses to prevent overheating.
Service if recurring: Frequent thermal shutdowns even after descaling indicate a failing sensor or control board that should be checked by a technician.

Medium 3/5

Thermoblock / NTC Sensor

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