Zwilling Overheating Brew Water

Coffee is excessively hot, with steam and splattering at the spout.

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

Shorted temperature sensor, Stuck heating relay on control board, Faulty thermostat not opening

Safety: This condition can be hazardous. Unplug the machine immediately and allow it to cool.

Do not continue use: Overheating can cause scalding and damage internal components.
Inspect sensors and thermostats: Test the NTC sensor and thermostats on the thermoblock. Replace any that are shorted or not opening at the correct temperature.
Check control board relay: If the heater remains powered when it should be off, the relay on the main board may be stuck closed. Replace the main control board.

Professional Required 5/5

Thermoblock Thermostat / Main Control Board

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