Garbage Disposal Not Working? What to Check Before You Call a Plumber

Introduction
A homeowner in Legacy Ridge called us last week sure her disposal had died for good. She'd flipped the switch a dozen times, and nothing happened. Turned out the small red reset button on the bottom just needed a push. It ran fine after that.
That's how most calls about a garbage disposal not working in Westminster, CO actually start. The fix is usually smaller than it feels in the moment. We're a family-owned plumbing company. Our crew includes certified Master Plumbers, and we see this exact problem on kitchen calls across town every week.
This guide walks through what to check first. You'll find the common signs and a few safe steps to try on your own. You'll also find the point where a stuck, humming, or leaking disposal means it's time to call a licensed plumber. Most of these problems don't need a new unit. They just need the right first step.
Why Is My Garbage Disposal Not Working?
Most disposal problems come down to one of a few simple causes. Here's what to check, in order:
- Press the small red reset button on the bottom of the unit.
- Check the outlet and breaker for tripped power.
- Turn off power, then use a hex wrench in the bottom center hole to free a jam.
- Never put your hand or fingers inside the disposal.
- Humming with no spinning usually means a jam or a motor that's starting to fail.
- Water leaking underneath usually points to a worn seal or a loose connection.
A tripped breaker, a jam, or a worn seal causes most disposal problems, not a dead motor. If these steps don't fix it, a licensed plumber can inspect the unit and repair it safely.
Still stuck?
Schedule garbage disposal repair in Westminster, CO and we'll get it running again.
Common Signs Your Garbage Disposal Isn't Working
Before you try anything, figure out which problem you actually have. Each one points to a different fix.
- No sound at all when you flip the switch
- A humming noise but the blades don't spin
- It runs, but food isn't grinding down
- Water leaking underneath the sink
- The breaker trips every time you use it
We hear all five of these on service calls throughout Westminster every week. So knowing which one you've got saves you time before you even pick up a wrench.
Check the Power and Reset Button First
Start with the easiest fix. Most disposals have a small red reset button on the bottom of the unit, usually near the center. Press it firmly. If it clicks and stays in, that's a good sign.
Next, test the outlet with another device, like a phone charger. If nothing happens, check your breaker panel for a tripped switch.
Under-sink outlets are often on a separate safety circuit, and those can trip on their own. Our plumbers check that little button on almost every disposal call. It solves more of them than most homeowners expect.
Clear a Jam the Safe Way
If the reset button didn't fix it, the next step is checking for a jam. Always turn off the power at the switch and the breaker first. This part matters. Never skip it.
Look at the bottom of the unit for a small hex-shaped hole in the center. Fit a hex wrench into it and rock it back and forth. This frees a jammed flywheel from the outside, without ever reaching inside the unit.
Once it moves freely, use a flashlight and a pair of tongs to pull out any debris you can see. Never use your hand. Then restore power and test it.
A jam that comes back again and again usually means something more than food debris. Worn bearings inside the motor can cause the same jammed feeling, and that's a repair job, not a DIY one.
Humming But Not Spinning? Here's What It Means
A humming sound points to something different than silence. Here's how to tell them apart. Humming almost always means power is reaching the motor, but the blades can't turn. Something is blocking them.
Try the jam-clearing steps above first. That fixes most humming disposals.
If the humming continues after you've cleared a jam, the motor itself may be wearing out. If your unit has been running for many years already, replacing it often makes more sense than repairing it again.
Ready to get it running again? Schedule garbage disposal repair and we'll take it from here.
Signs of a Leak Under the Sink
Once a jam is ruled out, it's worth checking for leaks before deciding what's next. Leaks usually show up in one of two spots. Check where the disposal connects to the sink flange, and where the dishwasher hose links into the unit.
Check both connections for looseness first. A quarter turn with a wrench sometimes solves it.
Most of the time when this happens in Westminster homes, hard water is part of the story. Our water runs harder than a lot of the country, testing between 100 and 135 parts per million. That mineral content wears down rubber seals faster than you'd expect. What starts as a small drip under the cabinet can turn into a bigger problem if it sits too long.
When to Call a Licensed Westminster Plumber
Some of these signs mean it's time to stop troubleshooting and call a plumber:
- The disposal is getting up there in age and keeps needing attention
- Jams or breaker trips keep coming back after you reset it
- Leaks continue even after you've checked the connections
- You notice a burning smell or a grinding, rattling noise from the motor
But a disposal problem doesn't have to turn into a bigger repair if you catch it early.
Our licensed plumbers handle disposal repairs and replacements across Westminster every day. We'll tell you honestly whether it's worth fixing or time to replace. Contact our Westminster garbage disposal repair team and we'll get your kitchen back to normal.

