The Vitamix motor is designed with Automatic Overload Protection to protect itself from overheating. If the motor overheats:
Turn the power off for up to 45 minutes, allowing the machine to cool down or reset. Reset time will be extended if high room temperarutes exist. To reduce the reset time, remove the container, unplug the machine, and use a hair dryer on the cool setting to blow air into the center section of the bottom of the motor base.
If you are still unable to start your machine, please contact customer service.