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Ursprünglicher Beitrag von: Stephen ,


That's because your fanwheel blades have too much dust and fluff built up on it.

Just take it out and and clean the fan blades from dust with a soft brush. If you brake the assembly, willingly or accidentaly, you can put it back together with a good quality sticky tape.

After this a bit of vacuuming does help from the outside once a week or so to slow this dust accumulation.

It worked for me and had to do it about 3 years after I bought it.