I have all of my machines serviced every 12 months. Well worth the price. But, my Janome 11000 has an annoying squeak when the embroidery unit is running, and my Babylock Ellegante has one when I first press on the foot pedal. The technicians have not been able to locate the reason for either but say that both the machines are in top notch operating condition. I just live with the little noises.