[Al Skierkiewicz]

Guys,
There are several threads related to this issue. Window motors have a set of locking pins that seem to interact with the higher switching frequency in the Jags. Once locked, the motor has to be reversed to release the pins and allow forward motion. The rules this year allow you to remove the pins if your design does not need them. If the pins are locked and you continue to push the motor, it will over heat and the PTC will limit the current through the motor. For info on removing the pins, search window motors and John Novak. You will find a procedure for removing the pins.