If your disposal does not turn on, there are several steps you can take. Be wary of sticking your hand into a garbage disposal, and always ensure it's in the off position before attempting any troubleshooting tips. Make sure the disposal is plugged in Press the reset button on the bottom of the unit (usually red) Check your service panel to reset any tripped circuit breakers If these tips don't work, it could be faulty wiring. While this is best left to professionals, you can visually inspect the wing to see if there are any noticeable defects.