I had a Janome foot pedal that stopped and then sometimes raced and I had to turn off the machine to get it to stop. Very scary. I took it to the dealer and they had me purchase another pedal that looked the same. Sure enough a few months later the same thing happened again. I think it was a defective pedal = the one I have now has a retractable cord and is a different design. It does not do that. If your is a narrow foot pedal that does not have a retractable cord, it is probably like my old one. Not good, especially when it races at full speed. My retractable cord foot pedal has been wonderful.