Zwilling
Low Brew Temperature
Coffee is lukewarm or not hot enough when dispensed.
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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
Faulty thermoblock temperature sensor, Scale buildup reducing heat transfer, Incorrect temperature calibration in control board
How to Fix / Troubleshooting
Safety: Unplug before internal work; external checks can be done with power on.
- Preheat and test: Let the machine warm up fully and run a blank shot. Measure temperature in the cup; preheat the cup with hot water.
- Descale: Run at least one full descaling cycle to improve heat transfer.
- Check sensor (advanced): Access the thermoblock and test the NTC sensor resistance. Replace if out of range.
- Control board calibration: If hardware is fine but temperature remains low, the control board may require replacement or firmware update via service.
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Repair Difficulty
Medium
3/5
Required Part
Thermoblock NTC Sensor / Thermoblock Assembly
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