On Fri, 12 Dec 2014 19:27:44 -0600, "ChairMan"
wrote:

the old fashion way of using a broom stick handle from the
top of the disposer.
Wedge it in there and see if you can get it to turn


+1 One or both of the cutting blades may have wedged against the
side, keeping the unit from spinning.

OP:

Try the broomstick to see if you can move the cutting blades (free
them up).