A jammed garbage disposal stops kitchen work. It often hums but does not grind. Most jams come from hard items or too much food. You can fix it at home with basic tools. Follow these steps to get it working again.
Common Causes of a Jammed Garbage Disposal
Jams happen for clear reasons. Hard objects like bones or pits get stuck. Fibrous foods such as celery or potato peels wrap around blades. Grease hardens and blocks the unit. Small items like bottle caps or utensils fall in by mistake. Over time, buildup from food scraps leads to problems. Knowing causes helps prevent repeats.
Tools and Materials You Need
Gather these before you start:
- Flashlight
- Allen wrench (1/4-inch hex key) or disposal wrench
- Tongs or pliers
- Wooden spoon or dowel
- Baking soda and vinegar for cleaning
Turn off power first. Unplug the unit or flip the breaker.
Step-by-Step Instructions to Unjam the Disposal
Start with safety. Make sure the unit has no power.
Check and Press the Reset Button
Look under the disposal. Find the red reset button on the bottom. If it sticks out, push it in. Wait 10 to 15 minutes if the unit overheated. This resets the overload protector. Plug in and test. Run cold water and flip the switch. If it works, you fixed it.
If the button pops out again, let it cool longer. Repeat until it stays in.
Inspect for Visible Blockages
Use a flashlight. Shine it into the disposal from the sink. Look for stuck items around the edges. Do not put your hand in.
Grab tongs or pliers. Pull out any debris you see. Common finds include spoons, peels, or bones. Clear everything.
Rotate the Blades Manually
Find the hex hole on the bottom center. Insert the Allen wrench. Turn it back and forth. Go clockwise then counterclockwise. This frees the impeller plate.
If it turns freely after a few tries, remove the wrench. Test the unit with cold water running.
If no hex hole, use a wooden spoon from above. Push against the blades to spin them. Do this only with power off.
Clean the Unit After Unjamming
Pour half a cup of baking soda in. Add a cup of vinegar. Let it fizz for 5 minutes. Run hot water and turn on the disposal. This clears residue.
Grind ice cubes with salt once a month. It sharpens blades and removes buildup.
Prevention Tips to Avoid Future Jams
Run cold water before and after use. It flushes scraps. Cut food into small pieces. Avoid putting in eggshells, coffee grounds, or rice. These expand or stick.
Never pour oil or fat down the drain. It solidifies. Use the disposal for soft scraps only.
Clean weekly. Grind lemon peels for fresh smell. Check for leaks under the sink often.
Link to related content on our site for more home tips: Natural Oven Cleaning Methods No Chemicals for kitchen care ideas.
When to Replace the Disposal or Call a Pro
If it still hums but won’t spin, the motor may have failed. No sound means a bad switch or wiring.
Leaks from the bottom signal worn seals. Slow drains point to clogs in pipes.
For complex issues, call a plumber. Units last 10 to 15 years. New ones cost $100 to $300.
See external guides for more: InSinkErator Support on Jammed Disposals or WikiHow Step-by-Step.
Frequently Asked Questions
What if the Allen wrench does not work?
Try a wooden dowel from the top to spin blades. Check for hidden items. If free but still jammed, replace the unit.
Why does my disposal hum but not grind?
A stuck impeller causes this. Use the wrench to free it. Overheating trips the reset.
Can I put my hand in the disposal?
No. Always use tools. Power must stay off.
How often should I clean it?
Once a week. Use natural methods like ice and citrus.
For more DIY fixes, check How to Clean Clogged Dryer Vents DIY Guide.
This guide uses data from top sources as of September 2025. Facts match current standards. Always prioritize safety.