What should I do? My 4-yr.-old Pfaff 2170 quit on August 22nd and they keep trying to fix it but to no avail so far. The shop is a registered/licensed Pfaff dealer and repair shop. Technichian has tried replacing parts and mother board but still doesn't work. They are shipping it to Pfaff tomorrow. Are talking of me trading for an upgrade but I'm not going for that! Anyone have problems with this machine or do I have a lemon? Have not used it excessively.