A garbage disposal that suddenly goes quiet can make you think it’s broken—but often, it has simply tripped its built-in reset switch. You can usually reset it in a few minutes, as long as you make the area safe first and check for a jam before turning it back on. Here’s how to reset a garbage disposal step by step, what to do if the reset button doesn’t work, and when it’s time to call a plumber or electrician.
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Why a Garbage Disposal Needs to Be Reset
Most garbage disposals have an internal overload protector. If the motor gets too hot or has to work too hard, this safety feature cuts power to protect the motor. The small reset button—often red and located underneath the unit—can restore power after the disposal has cooled.
A disposal may trip after grinding too much food at once, handling a tough item, or trying to turn while something is stuck between the grinding parts. A power interruption or electrical problem can also stop the unit, although those issues may not be fixed by pressing the reset button.
Resetting the switch won’t clear a jam. If something is preventing the grinding plate from turning, the motor may trip again as soon as you switch the disposal on. That’s why it’s worth checking for a jam before restoring power.
How to Reset a Garbage Disposal Safely
Keep your hands out of the disposal chamber, even when the unit appears to be off. The grinding components can move unexpectedly if power is restored. If you need to remove something, disconnect the power first and use a tool—not your fingers.
1. Turn off the disposal and cut the power
Switch the disposal off at the wall switch. Then disconnect its power before inspecting it. If it plugs into an outlet under the sink, unplug it. If it’s hardwired, switch off the correct circuit breaker at your electrical panel.
Don’t rely on the wall switch alone. Someone could accidentally turn it on while you’re working. If you’re not sure which breaker controls the disposal, stop and identify it before putting tools near the unit.
2. Check for an obstruction
Use a flashlight to look through the sink opening. If you can see a foreign object, such as a utensil or a piece of food, remove it with long-handled pliers or tongs while the power is disconnected. Never put your hand into the disposal, even if you’re wearing gloves.
If nothing is visible, check the underside of the disposal for a hex-shaped socket. Many models accept a disposal wrench or a hex key that lets you turn the motor shaft by hand. Use the wrench specified in your owner’s manual, or the tool supplied with the unit. Gently turn it back and forth to free a jam; don’t force it if it won’t move.
Not every disposal has an accessible wrench socket. If yours doesn’t, check the manual for the manufacturer’s recommended way to clear a jam. Avoid pushing tools blindly into the sink opening.
3. Let the motor cool
If the disposal tripped because it overheated, it needs time to cool before the reset button will work. Leave it switched off for about 5 to 10 minutes, or longer if the unit still feels hot. The exact cooling time can vary by model.
4. Press the reset button
Look underneath the disposal for a small reset button, which is often red. It may sit on the bottom of the housing or along its side. Press it firmly once. If it clicks or stays in, the overload protector may have reset.
If the button pops back out immediately or won’t stay pressed, don’t keep forcing it. The motor may still be too hot, a jam may remain, or the unit may have another fault. Wait a little longer and recheck the disposal with the power disconnected.
5. Restore power and test it
Plug the unit back in or switch its breaker back on. Run a steady stream of cold water into the sink, then turn the disposal on for a few seconds. Cold water helps carry ground food through the drain line. Listen for a smooth motor sound, and switch it off if you hear humming without grinding, repeated clicking, or an unusual loud noise.
If it runs normally, let it run briefly with the water still flowing before switching it off. If it trips again, don’t keep resetting it. Repeated trips are a sign that the underlying problem needs attention.
What to Do If the Reset Button Doesn’t Work
A reset button can restore the disposal only if the problem is something the overload protector can address. The symptoms can help you decide what to check next.
| What you notice | Possible reason | What to try |
|---|---|---|
| The disposal is completely silent | Tripped reset, unplugged unit, switched-off breaker, or an electrical fault | Check the plug and breaker, then try the reset procedure once. |
| The motor hums but the grinding plate doesn’t turn | A jam may be holding the motor | Switch off and disconnect power. Check for an obstruction and use the manufacturer-recommended wrench method. |
| The reset button pops out again | The motor may still be hot, the unit may still be jammed, or a fault may be present | Wait for it to cool and check for a jam with power disconnected. Stop if it trips again. |
| The breaker trips when you switch on the disposal | Possible electrical overload, short, or failing unit | Leave it off and contact a qualified electrician or appliance professional. |
| The disposal runs, but water drains slowly | A blockage may be farther along in the drain plumbing | Stop adding food and investigate the drain separately, or call a plumber. |
If there’s no sound at all
Make sure the disposal’s plug is firmly connected, if it has one. Check whether a nearby GFCI outlet has tripped and whether the circuit breaker is fully on. Some breakers need to be pushed firmly to the off position before they can be switched back on.
If the outlet, breaker, and reset button all appear normal but the disposal stays silent, the unit may have an electrical or motor problem. Don’t open the disposal’s housing or work on its wiring unless you’re qualified to do so.
If it hums but won’t grind
A humming sound usually means the motor is receiving power but can’t turn freely. Turn it off promptly; leaving it humming can cause the motor to overheat and trip the reset switch again. Disconnect the power and follow the jam-clearing steps in your owner’s manual.
After clearing an obstruction, press the reset button and test the unit with cold water running. If the motor still only hums, stop. The jam may not be cleared, or the disposal may need repair.
If the sink still drains slowly
A disposal that spins normally can still have a blocked drain. The disposal breaks food into smaller pieces, but it doesn’t remove every possible clog farther down the pipe. If water backs up, stop running the unit and avoid pouring chemical drain cleaner into it. Check your disposal and drain manuals, or contact a plumber if the blockage persists.
Common Reset Mistakes to Avoid
- Putting your hand inside: Even with the switch off, disconnect the power first and use pliers or tongs to remove visible objects.
- Repeatedly pressing reset: A reset isn’t a repair for a jam or a faulty motor. If the unit trips again, stop and find the cause.
- Forcing the wrench: Gentle back-and-forth movement may free a jam. Forcing a stuck shaft can damage the unit or tool.
- Running it without water: Use cold water while the disposal operates so ground food can move through the drain.
- Using chemical drain cleaners: These products may damage disposal components or create a hazard when you work near the sink. Follow the manufacturer’s guidance instead.
How to Reduce the Chance of Another Trip
Feed food scraps in small amounts rather than filling the disposal all at once. Run cold water before, during, and briefly after grinding. This helps move the waste through the drain instead of letting it collect inside the disposal or pipe.
Follow your model’s manual for foods to avoid. Fibrous scraps, large bones, hard objects, and grease can cause trouble in many household disposals. Grease is especially unhelpful because it can cool and cling to pipes, contributing to clogs even if the disposal itself runs normally.
When to Call a Professional
Call a plumber or appliance repair professional if the disposal trips repeatedly, leaks, makes a grinding or burning smell, or won’t turn after you’ve followed the manual’s jam-clearing steps. A disposal that leaks from its body or electrical connections should be left off until it’s checked.
Get help from a qualified electrician if the breaker keeps tripping or you suspect an outlet or wiring problem. Electrical faults aren’t solved by repeated resets, and working on live wiring can cause serious injury.
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Frequently Asked Questions
Where is the reset button on a garbage disposal?
It’s usually a small button on the bottom or side of the disposal under the sink. The location and color vary by model, so check your owner’s manual if you can’t find it.
How long should I wait before resetting a garbage disposal?
Wait about 5 to 10 minutes for an overheated motor to cool. If it still feels hot or the reset button won’t stay in, wait longer and check for a jam with the power disconnected.
Can I reset a garbage disposal without a wrench?
You can press the reset button without a wrench, but a wrench may be needed to free a jam. Use only the method and tool recommended for your model. Don’t put your hand or a tool into the disposal while it’s connected to power.
Why does my garbage disposal keep tripping after I reset it?
It may still be jammed, overheating, or experiencing an electrical or motor fault. Turn it off and stop resetting it until you’ve checked the cause. If the problem continues, arrange a repair.
Conclusion
To reset a garbage disposal safely, turn it off, disconnect its power, check for a jam, let the motor cool, and press the reset button underneath the unit. Restore power and test it briefly with cold water running. If it trips again, hums without turning, leaks, or causes the breaker to trip, leave it off and get professional help rather than forcing another reset.
