Siemens Electrical Overheating / Component Failure

Machine emits a burning smell or visible smoke during operation.

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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

Shorted heater, Burnt wiring, Failing motor, Coffee or milk spilled onto hot components

How to Fix / Troubleshooting

Safety first: Immediately switch off and unplug the machine. Do not continue using it until inspected. Risk of fire and electric shock.

Step-by-step:

  • 1. Ventilate area: Open windows and allow smoke or odor to dissipate.
  • 2. External inspection: Check for visible burn marks, melted plastic, or spilled liquids on or around the machine.
  • 3. Do not open if smoke is active: Wait until the machine is completely cool before removing any covers.
  • 4. Internal inspection (for qualified persons only): Look for burnt components on the power supply, heater connections, or motors.
  • 5. Professional repair: Do not attempt to operate the machine again. Contact Siemens service for a full safety inspection and repair.
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Repair Difficulty

Professional Required 5/5

Required Part

Thermoblock Heater Assembly
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