Neff Cooling or Convection Fan Mechanical Failure

Microwave makes a grinding or scraping noise from the top or rear during operation.

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.

Possible Causes

Worn fan motor bearings, Foreign object in fan blades, Bent fan blade, Loose fan mounting

Safety: Unplug the microwave before removing covers.

Inspection:

Remove the outer cabinet to access the cooling fan and, if fitted, the convection fan.
Check for foreign objects or insulation touching the fan blades.
Spin the fan by hand; if it feels rough or wobbly, the motor bearings are worn.
Tighten any loose mounting screws.

Replace the fan motor if noisy or stiff. Ensure all wiring and insulation are clear of the rotating blades.

Medium 3/5

Cooling Fan Motor

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