Every InSinkErator comes with a ¼-inch hex (Allen) wrench. If you lost it, any hardware store sells them for a few dollars.
Flip the disposal switch to "On". The unit should run smoothly. If it hums again, turn it off immediately and repeat the wrenching process, as a secondary object may still be stuck. Alternative Method: The Wooden Spoon Trick insinkerator stuck
Most InSinkErator models feature built-in mechanical overrides that allow homeowners to manually clear jams without calling a plumber. Follow these chronological steps to fix the issue: Step 1: Check for the Humming Sound Turn the disposal switch on briefly. Every InSinkErator comes with a ¼-inch hex (Allen) wrench
Once the plate spins freely manually, you need to reset the motor. The unit should run smoothly
If it feels stiff, apply firm but steady pressure until the wrench can freely spin a full 360 degrees in both directions. This action manually rotates the internal flywheel and dislodges the item jamming the grinding plates. Step 3: Clear Debris from the Splash Guard
High-fiber or highly expandable foods can wrap around the impellers or clog the drain lines. Avoid putting onion skins, celery stalks, corn husks, potato peels, coffee grounds, and oatmeal down the unit.
Never put grease, liquid oils, animal fats, harsh chemicals, or extremely hard materials like clam shells or thick beef bones down the drain. These materials bypass the blades and solidify or crack the inner mechanisms.