My X-2 mill has developed a hum while in the idle state. It does not always do this but it has gotten to the point that it occurs more than 50% of the time. There is definitely a voltage going to the motor as turning the spindle by hand changes the level of hum. There is also slightly more resistance when turning the spindle anti clockwise. When the stop button is latched the spindle drag, from the magnets in the motor, is about the same in both directions.
I have checked the board for obvious problems, i.e. bad soldering or loose connections, and found nothing. I just thought that I would ask the group if anyone had had this problem and how was it resolved?
The hum is not very loud and as far as I can tell not detrimental to the machine but it is an irritant that I would like to eliminate.
Joe