[. . . ] Must only be done by a Technical Assistance Service authorised by the manufacturer. [. . . ] Before using the appliance for the first time, read this instruction manual carefully and keep it for later reference. before using the appliance , ensure that the domestic mains voltage is the same as that indicated on the appliance itself. The electrical safety of the appliance is only guaranteed if it is correctly earthed. If any repairs are necessary, they must be done by a Technical Assistance Service authorised by the manufacturer. If it is damaged or needs replacing, this Before assembling the fan, take the different parts out of the packaging and check that the supply cable is not damaged and that the appliance has not received any knocks during transport. Fix the control box to the fan support using the screw provided with the appliance. [. . . ] To store the appliance after cleaning, place it in its box and keep it in a dry place. [. . . ]