That sounds like the problem he may have. How expensive is it to replace the motor and controller? The price for them may make it better to look elsewhere instead of his. Thanks, Ted
The motor and controller are kind of expensive to replace new.
If it's the controller -which is most common- it is much cheaper to repair it and usually only needs to have the two MOSFETS replaced (they are easy to replace and don't cost much). Common symptom of failure here is just nothing happens when it turns on.
The motor is a DC brush motor, and may have had a brush fail, if so it is also an easy replacement. Not real common but possible.
(In the end I ended up going with a conversion to a heavy duty controller and a small treadmill motor, not all that difficult a conversion but a project of more than trivial nature. They cost me far less than a new stock motor and controller board. It's a pretty high powered machine now, and very capable of handling anything that fits in it with ease)
I think Little Machine Shop should have the parts to see how much they cost so you can decide whether or not it is worth it, I think if I could get one in an unknown cause not running state for under a hundred bucks (hopefully 50 - 75) I'd seriously consider going for it. Stuff like the chuck, tailstock center, faceplate and such if they're all there are worth that much and if there is any tooling that would be another plus.