Unclogging your InSinkErator garbage disposal is a common DIY task that can usually be resolved in a few minutes without calling a plumber. Whether your unit is making a humming sound, not turning at all, or water is simply backing up into the sink, these steps will help you clear the obstruction and restore power.

For the most common scenario—a jammed unit—the first line of defense is the InSinkErator’s own self-service features. Most modern InSinkErator models come equipped with a self-service wrench, a small, L-shaped Allen wrench usually found in a pouch taped to the side of the disposal or under the sink. At the very bottom center of the disposal unit, on the exterior, there is a small hexagonal hole. Inserting the wrench into this hole allows the user to manually rotate the impellers. By gently working the wrench back and forth, the user can often dislodge the object causing the jam. Once the wrench turns a full rotation with ease, the obstruction has likely been cleared. After this, press the red reset button (located near the hex hole) to reset the thermal breaker, restore power, and test the unit with cold water running.

Finally, prevention is the best cure for garbage disposal clogs. An InSinkErator is designed to handle soft food scraps, not trash. To ensure longevity, avoid putting fibrous materials like celery stalks, corn husks, or onion skins into the unit, as these can wrap around the impellers and create stubborn jams. Similarly, grease and oil should never be poured down the drain; they may be liquid when hot, but they solidify in the pipes, creating a thick sludge that traps food particles. Regular maintenance, such as grinding ice cubes to clean the grind ring and using citrus peels to freshen the scent, will keep the unit functioning optimally.