I wrote to the man who sold me the machine (ebay). He has been very helpful. It belonged to his sister-in-law. I knew that, I did not know she died in November. Don said he had the machine serviced before he put it on ebay so somehow the serviceman was able to bypass the code. He is going to contact the dealer and get back with me. The nearest authorized Pfaff dealer to me is about 200 miles away!