If you suspect that your InSinkErator is blocked, try the following steps:
How to Fix a Blocked InSinkErator: A Complete DIY Guide A blocked InSinkErator can quickly turn a productive kitchen into a source of frustration, leading to standing water and unpleasant odors. Fortunately, most blockages are caused by simple jams or waste buildup that you can resolve without calling a plumber. Phase 1: Safety First Before attempting any repairs, ensure the unit is completely powered down. Unplug the unit from the wall outlet under the sink. Flip the breaker if the unit is hardwired, to prevent accidental activation. Never put your hands directly into the grinder unless you are 100% certain the power is disconnected and you are wearing protective gloves. Phase 2: Clearing a Mechanical Jam If you hear a humming sound but the blades aren't moving, the motor is likely "bound" by a hard object. Use the Jam-Buster™ Wrench: Locate the small hexagonal hole at the very bottom center of the unit. Insert a 1 / blocked insinkerator
If the motor sounds normal but the sink fills with water, the disposal itself is fine. The blockage is downstream—in the drain pipe connecting the disposal to the main P-trap. If you suspect that your InSinkErator is blocked,
There’s a unique sinking feeling when you flip the switch for your InSinkErator and hear nothing but a low hum —or worse, complete silence. You’re staring down the drain, water is backing up into the sink, and dinner is getting cold. Unplug the unit from the wall outlet under the sink