Liebherr Overheating or Electrical Insulation Failure

Cooktop 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

Grease buildup on components, Overheated wiring or terminal block, Failing power module, Foreign object under cooktop

How to Fix / Troubleshooting

Safety first: Immediately switch off all zones and disconnect power at the breaker. If you suspect a gas leak, also shut off the gas supply and ventilate.

User steps:

  • Do not continue using the appliance until it has been inspected.

Technician steps:

  • Remove the cooktop and inspect the underside for burnt wiring, melted insulation, or scorched components.
  • Check the terminal block and power cables for overheating.
  • Clean any heavy grease deposits from the cooling fan and internal surfaces.
  • Replace any damaged wiring harnesses, terminal blocks, or power modules as required.
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Repair Difficulty

Professional Required 5/5

Required Part

Wiring Harness / Terminal Block
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