DeLonghi DEM10 fan not spinning?

Crying in tears here, owned my lovely dehumidifier for about 7 years now, never any problems occurred!! However, my DEM110 is not collecting any water. Power is on, PCB works. I have opened the case after struggling for about 2 hours... And have discovered loads of dust, all cleaned now, the unit is assembled. However, the fan is not spinning anymore. I have opened it again and oiled the shaft with WD40, no results... What could be the problem with the fan? Thank you!