Spinning and running; the shaft moves 360°.
The shell doesn't need to be on, lay the chassis on its side or put it on blocks. If the motor is cooked, we are wasting time on the board.
Just make sure the motor spins using power without any trouble. It must be dc to go right to the motor. The board turns track ac to dc before it gets to the motor, so you need dc to bypass the board to test.
Lightly spin 360° a bunch, both directions by hand too as that may reveal an internal snag/hang up you can feel.
