C151
Vorwerk
Heating System Control Fault
C151 error, appliance cannot control temperature correctly (overheats or does not heat)
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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
Failed heating element in bowl base, Faulty triac or relay on power board, Shorted wiring between board and heater, Calibration error in temperature control circuit
How to Fix / Troubleshooting
Safety first: Disconnect from mains. Risk of electric shock and burns if the heating circuit is faulty.
- 1. Observe behavior: Note whether the unit fails to heat at all or overheats. Do not leave it unattended if it overheats.
- 2. Test with water: Fill the bowl with 1 liter of water and set a moderate temperature (e.g., 60°C). If the temperature does not rise or rises uncontrollably, stop the test.
- 3. Do not open base: The heating element and its control components are directly connected to mains voltage. User access is unsafe.
- 4. Service required: Contact an authorized service center. A technician will test the heating element, power control board, and associated wiring and replace the defective part.
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Repair Difficulty
Professional Required
5/5
Required Part
Heating element (bowl base)
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