My shredder runs in reverse mode, but not in auto/on mode

While in “Auto” mode, the motor will not start running until paper is inserted into the feed slot. Set the unit to “Auto” and insert paper to be shredded. The sensor that activates the shredder in Auto mode is located directly in the center of the slot. If the paper you are inserting is narrow, it may not be activating the optical sensor. It is possible that the feed slot has become blocked with paper. Insert an index card or any rigid sheet of cardstock (old greeting card, file folder, or a sheet torn from a cereal box), directly in the centre of the feed slot, while applying force to help push the jammed paper through. This will usually clear any paper blockage.