Why does garbage disposal hum but not run?

Answer 1

Either something is jammed in the blades or it is rusted. On the bottom of the disposal, there is a hex shaped hole in the center that you can use the key that came with the disposal if it is under the sink or a regular hex key. Wiggle it back and forth and sometimes it will dislodge what is stuck in the blade. Another way is to use a wooden broom handle to pry the blades loose. Put the handle into the disposal and against the blade and pry against the lip of the hole. Try in both directions and usually this will free up the blade. If there is something in there, take it out before using the disposal, don't try to grind it up.