A humming sound indicates the motor has power but the grinding plates are physically stuck. Garbage Disposal Not Working? Try This FIRST!
This usually indicates a foreign object (utensil, coin, bone) falling into the chamber. my insinkerator is not working
InSinkErator garbage disposals are known for their reliability, but even the best units can occasionally stop working. Before you call a repair technician—or worse, buy a new one—try these simple troubleshooting steps. You may solve the problem in under five minutes. A humming sound indicates the motor has power