An open under-sink cabinet with a garbage disposal

Garbage Disposal Not Working: How to Fix

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Signs You Have This Problem

A broken garbage disposal can throw off your whole kitchen routine, but here's the good news: most disposal problems are simple fixes that don't require a plumber. In this guide, you'll learn exactly what's causing the problem and how to get your disposal running again in about 30 minutes.

No power

The disposal won't turn on when you flip the switch, or it hums but the blades don't spin

Slow draining

Water backs up in the sink when the disposal is running

Strange noises

You hear grinding, rattling, or squealing sounds coming from the unit

Foul smells

Even when running, the disposal smells terrible or isn't breaking down food

Everything else about a disposal that won’t work

Tools and Parts You'll Need

Flashlight

Free (you probably own one)

Needle-nose pliers

$5-10

Hex wrench set (Allen keys)

$8-15

Bucket

Free (any household bucket works)

Heavy-duty gloves

$3-5

Replacement disposal

(if needed) — $150-400

Total for basic repair: $20-35

Step-by-Step Fix
  1. 1

    Safety first

    Turn off the garbage disposal at the switch on your wall, then unplug it from the outlet under the sink. Wait a few seconds to make sure it's completely stopped. This is non-negotiable—you never want to stick your hand in while it could accidentally turn on.

  2. 2

    Look for the jam

    Grab your flashlight and peer down the drain opening. You're looking for food chunks, utensil parts, or bones stuck in the chamber. Jams are the #1 reason disposals stop working.

  3. 3

    Remove visible debris

    Put on your heavy gloves and use needle-nose pliers to pull out anything you can see. Place a bucket under the drain to catch any water that spills. Toss the debris in the trash.

  4. 4

    Free up stuck blades

    If you don't see anything, the jam is inside. Most disposals have a hex socket (looks like a small square hole) at the very bottom of the unit. Insert the appropriately-sized hex wrench and turn it back and forth—don't force it, just work it gently until you feel resistance ease.

  5. 5

    Manual cleanup

    With the wrench still in place, manually rotate the wrench slowly to help dislodge whatever is caught.

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