You flip the switch and the garbage disposal just hums. No grinding, no spinning, just that low buzz. Good news: this usually means something is jammed, and you can almost always free it yourself in about fifteen minutes.

Safety First

Turn the disposal switch off, then unplug the unit under the sink or switch off its breaker. Never put your hand inside a disposal, even with the power off. Use tongs or pliers instead.

What You’ll Need

• A 1/4-inch hex key (Allen wrench). Many disposals come with one, often called a disposal wrench.
• Tongs or needle-nose pliers
• A flashlight

Step 1: Look for the Jam

Shine the flashlight down the drain. If you can see what’s stuck, like a bottle cap, a bone, or a fruit pit, pull it out with tongs or pliers.

Step 2: Free the Motor From Below

Look at the very bottom of the disposal under the sink. In the center there’s a small six-sided hole. Fit the hex key into it and work it back and forth until it turns a full circle freely. That breaks the jam loose.

Step 3: Press the Reset Button

A jammed disposal often trips its own overload protection. Find the small red button on the bottom of the unit. Give the motor a few minutes to cool, then press the button until it clicks.

Step 4: Test It

Restore the power, run cold water, and switch the disposal on. If it grinds normally, you’re done. Let the water run for a bit to flush everything through.

Still Just Humming?

If it still hums after you’ve freed it and reset it, the motor may be failing. And if it does nothing at all, no hum, no sound, the problem is power: the reset button, the breaker, or the switch. Don’t pour chemical drain cleaner into a disposal; it can damage the unit and splash back at you.

Keep It Running

Run cold water before, during, and after every use. Keep grease, bones, fruit pits, and fibrous scraps like celery and corn husks out of it.

My guide walks you through fixing a garbage disposal, step by step.

Get the full guide: How to Fix a Garbage Disposal by Hank Palmer, on Amazon