My Bernina 440QE is not working now, sounds like the computer power source, and I could not go the whole weekend without sewing, so I brought out my 38 year old Bernina 830. I gave her a cleaning, oiling and a new needle and now she purrs like a contented kitten. Shame on me for leaving her unused for 4 years. I bought the machine new when I was in high school and now I'm almost ready for retirement, and the machine is still going strong. It was just like seeing an old friend after a few years.