10. Suction engine turns on, but does not suck.

Possible cause: a suction malfunction; something is preventing suction.

01) Remove the suction tube from the body of the machine

02) Ensure that there is not some object clogging the housing for the suction tube

03) heck inside the suction tube and accessories that there is  not something preventing suction

04) Ripetere l'operazione di controllo sui vari accessori utilizzati e all'interno del tubo corrugato della impugnatura