DeSilvia reminds homeowners never to put their hand in the disposal. If it won't grind, use the reset button, usually a black or red button on the bottom of the unit. Make sure the outlet the disposal is plugged into is working.
If the disposal seems jammed, use the Allan wrench or similar hand-crank tool that comes with the unit to give it a push start. If you can't find yours, many hardware stores carry them.
"Most service calls can be avoided by simply resetting your disposal," DeSilvia says. "Press the button and you are good to go. Just saved yourself $300 bucks for a service call."