What often happens is that the motor is shorted through 1/2 it's rotation.
This means the motor spins weakly, and draws LOTS of current. If the motor
happens to be stopped on the shorted phase, and if it's really
short-shorted, meaning 0 ohms instead of 1 or 2 ohms maybe, then the motor
won't go until you "help' it along.

Mark Z.


"blueking" wrote in message
ups.com...
The motor did spin. Will that still be a spin motor problem? One fact
is that the diodes got hot even when the motor doesn't spin. Any other
suggestions? Thanks a lot.