Lavazza Overheating Component or Electrical Insulation Failure

Machine emits a burning smell 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

Overheated thermoblock due to scale, Failing pump motor, Loose electrical connection arcing, Foreign object near heater

How to Fix / Troubleshooting

Safety first: Turn OFF and unplug the machine immediately. Do not continue using it until the cause is identified.

Step 1 – External check

  • Allow the machine to cool and then inspect for visible signs of melting or discoloration around vents.

Step 2 – Internal inspection (advanced)

  • Unplug and remove the cover.
  • Look for burned wiring, melted plastic, or scorched areas near the thermoblock, pump, and control board.
  • Repair or replace any damaged components.

When to seek service

  • A burning smell often indicates a serious fault; professional diagnosis is strongly recommended.
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Repair Difficulty

Professional Required 5/5

Required Part

Internal Wiring Harness
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