Breville Overheating Component or Electrical Fault

Breville espresso 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

Coffee oils burning on heating surfaces, Failing pump or motor, Overheating thermoblock, Electrical short on PCB

How to Fix / Troubleshooting

Safety: Immediately unplug the machine if you smell burning plastic or insulation. Risk of fire.

Steps:

  • Allow the machine to cool and inspect for visible smoke or scorch marks around vents.
  • Remove the drip tray and clean any coffee oils or spills from the hot plate or base.
  • Open the case and inspect the pump, motors, and PCB for burnt components or melted insulation.
  • Do not continue using the machine until the source is identified and repaired.

Resolution: Replace any burnt wiring, pump, or PCB. If the thermoblock overheated due to scale or sensor failure, replace the affected components and thoroughly descale.

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Repair Difficulty

Professional Required 5/5

Required Part

Main Control PCB
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