F20
Miele Cooling Fan Fault

Machine shows F20; internal fan or ventilation fault

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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

Blocked or seized cooling fan, failed fan motor, obstructed ventilation grills, fan driver fault on control board

How to Fix / Troubleshooting

Safety first: Unplug the machine before accessing internal components.

User-level checks:

  • Ensure the ventilation openings around the machine are not blocked by cabinetry or objects.
  • Clean dust and lint from external grills.

Technical inspection:

  • Access the internal cooling fan (often near the control board or boiler).
  • Check for dust buildup or foreign objects preventing the fan from spinning.
  • Spin the fan blades by hand to check for free movement.
  • Measure the fan motor resistance and check wiring.

Resolution:

  • Clean or replace a seized or noisy fan.
  • If the fan never receives power, the control board's fan driver may be faulty and should be serviced by a technician.
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Repair Difficulty

Medium 3/5

Required Part

Cooling Fan Assembly
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