Sirs, I have an Electrolux "Cyclone Power Plus" vacuum cleaner, Model Z4684, Serial No. 0142000798, bought some years ago but unfortunately I have lost the owner's manual. During use this evening it suddenly stopped and the label on the machine states "If the machine suddenly stops, unplug from the mains and refer to owner's manual". Hence my problem! Can you please advise? Many thanks, David Swan.