I had broken wires where the plug went into the sewing machine. I wanted my DH to permanently attach the plug to the wires of the machine but that didn't work so we have it taped tight and I can't take the plug out. Try the wall plug, turn the end over and try it that way in the wall, be sure the light switch is on if that is a wall socket controlled by a light switch, that happens more than you think. If you know someone who knows a bit about electricity, have him use his test light to see if you are getting power to the machine. If the motor had burned out, you would have smelled something like smoke and hot wires. Let us know what you find out.
Carol J.