I would take it to a Pfaff dealer for a service, even if you get it working. I have had one for 46 years and it still runs like a dream. Best machine of all I have. If you don't have a book go on ebay and get one after you get it working. This machine does amazing things and you need to know how to combine buttons for different functions and stitches. Good Luck anf good sewing. It will do around 60 different dectorative combinations.