Originally Posted by lovelyl

I had a 301 that I left plugged in and it started sewing by itself! The problem was in the foot pedal. Since I had purchased the machine only a week before, the seller graciously sent me a new foot pedal, problem solved.
But it was freaky when I saw it slowly sewing away with no one there! I now unplug all my machines when I leave the room for more than 5 minutes!