Garbage Disposal Not Working? How to Reset, Unjam & Fix It

When a garbage disposal quits, it feels like a job for a plumber — but most of the time it isn't. A disposal that hums, clicks, won't turn on, leaks, or drains slowly usually has a simple, DIY-fixable cause: a jam, a tripped reset button, or a clog. Before you call anyone, work through the steps below — you'll fix the majority of disposal problems in a few minutes.

First, the one rule that matters most: safety. Never, ever put your hand into the disposal, even when it's off. Use the steps and tools below instead.

Safety First (Read This)

Before touching anything, turn the disposal switch off and unplug the unit (or flip its breaker). Never reach into the disposal with your hand — use pliers, tongs, or the disposal's hex wrench. These rules apply to every fix below.

If It Hums But Doesn't Spin (a Jam)

A humming sound means the motor has power but the grinding plate is jammed by something stuck inside. This is the most common disposal problem and an easy fix:

• Turn the disposal OFF and unplug it.
• Find the hex (Allen) wrench that came with the disposal — there's a hex socket on the bottom center of the unit. (A 1/4-inch Allen key works if you've lost it.)
• Insert it into the bottom socket and crank it back and forth several times to free the jam.
• Look inside with a flashlight and remove any visible debris with pliers — never your hand.
• Plug it back in, press the reset button (see below), and test.

Leaving a disposal humming for more than a few seconds can burn out the motor, so always switch it off the moment you hear humming.

If It's Completely Dead (No Sound)

No hum, no click — the unit isn't getting power. Check these in order:

• Press the reset button: a red (or black) button on the bottom of the disposal. It pops out when the unit overloads; push it back in and test. This fixes a huge share of 'dead' disposals.
• Check the breaker: a tripped kitchen breaker will kill the disposal. Reset it at the panel.
• Check the outlet/switch: many disposals plug into an outlet under the sink (often switched). Confirm it has power, and that a dishwasher or other device didn't trip it.
• If it still won't run after the reset button, breaker, and outlet check out, the motor or switch may have failed — that's a replacement.

If It's Leaking

Find where the water is coming from — the location tells you the fix. A leak at the top (sink flange) usually means the plumber's putty seal has dried out and needs resealing. A leak at the side is often the dishwasher or drain hose connection — tighten the clamp. A leak from the bottom usually means the internal seals have failed, which means the unit is at the end of its life and should be replaced.

If It Drains Slowly or Clogs

A disposal that runs but drains slowly is usually clogged in the trap below it, not the disposal itself. Never use chemical drain cleaner in a disposal — it can damage it and splash back. Instead, the fix is usually to disconnect and clean the P-trap under the sink, or to clear the drain line. Going forward, always run cold water while grinding, avoid fibrous waste (celery, onion skins, potato peels) and grease, and the disposal will clog far less.

When to Call a Pro

Call a professional if: the unit is dead after the reset button, breaker, and outlet all check out (failed motor); it leaks from the bottom (failed internal seals); or you'd rather not crawl under the sink to reseal or replace it. A disposal swap is a quick job for a handyman — and a good time to upgrade an old, noisy unit. We replace and repair garbage disposals across Tampa Bay.

Disposal dead, leaking, or you'd rather not crawl under the sink? Get it fixed or replaced in Tampa — call or text (786) 509-5555. Get a disposal repair quote.