I have a 200e Bernina that did the same thing. Several trips back to the dealer. Several circuit boards - problems. I finally gave up and went with an 830. I made the mistake of not contacting Bernina directly, always went through the dealer. I would highly recommend contacting Bernina directly. At least you'd have peace of mind that someone other than the deal might address the problems. By the way, I recently heard that Bernina's don't usually like variegated thread and you might have a high incident of thread breakage. The correct needle made a huge difference, too. I was changing needles, but putting the same type in.