Miele
Overheating or Electrical Burning
Strong burnt smell during brewing or from inside the machine
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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 burnt on heater surfaces, overheating heater block, failing electrical component on control board, foreign object near heater
How to Fix / Troubleshooting
Safety first: If you smell burning plastic or see smoke, switch off and unplug the machine immediately. Do not continue using it.
User-level checks:
- Clean the brew unit, coffee spouts, and drip tray thoroughly to remove burnt coffee residues.
- Run several rinse cycles to flush old coffee oils.
Technical inspection:
- Open the housing and inspect for signs of overheating: discolored plastic, burnt wiring, or scorched PCB areas.
- Check around the heater block and steam boiler for foreign objects or melted insulation.
Resolution:
- Replace any burnt wiring, connectors, or components identified.
- If the control board or heater assembly shows burn damage, replace the affected module. This should be done by a qualified technician.
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Repair Difficulty
Professional Required
5/5
Required Part
Heater Block / Main Control Board / Wiring Harness
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