vitamix e310 making a loud grinding noise when i turn it on, is the motor broken?

DIAGNOSIS: This is usually caused by the container not being seated correctly or a foreign object left inside.

FIX: Here's what to check, step by step.

1. Turn the blender off and unplug it.
2. Remove the container from the base. Check the drive socket on the base and the drive spline on the container for damage.
3. Make sure the container's centering pad is flush with the base's drive socket. The drive spline must be fully engaged.
4. Look inside the container. Ensure no spoons, forks, the lid plug, or other objects are near the blades.

IF THAT DIDN'T WORK: Inspect the blade assembly for damage. Never operate with damaged blades or with the centering pad removed. If you see damage, stop use and contact Vitamix Customer Service.

HEADS UP: Always operate with the lid and lid plug firmly locked in place. Never remove the 2-part lid while the blades are rotating.