I used to think it was easier to replace things straight away, but if your garbage disposal suddenly stops spinning but still hums, you may not need a replacement.
You might just need a garbage disposal wrench.
Table of Contents
What Is a Garbage Disposal Wrench?
A garbage disposal wrench (also called a hex key or unjamming wrench) is a small tool designed to manually turn the disposal motor from underneath the unit.
Many models include one when you purchase it, however the good news is, if you’ve lost yours, replacements are inexpensive.
How It Works
Most disposals have a small hex-shaped hole at the bottom.
Insert the wrench and turn back and forth to:
Free stuck debris
Release jammed impellers
Reset the grinding plate
This is often enough to restore operation.
Step-by-Step: How to Use a Disposal Wrench
Step 1: Turn off power at the switch AND breaker.
Step 2: Insert the wrench into the bottom slot.
Step 3: Rotate clockwise and counterclockwise.
Step 4: Remove debris from inside the chamber.
Step 5: Press the reset button.
Step 6: Restore power and test.
Never reach inside the disposal with your hand.
When a Wrench Won’t Fix the Problem
Sometimes we wish there was a magic tool that could fix it all.
Although having a wrench will come in handy most of the time, here are some examples of when a wrench will not help if:
The motor is burned out
There is electrical failure
Internal components are broken
The unit is leaking
If your disposal repeatedly jams, the motor may be failing.
Do All Disposals Use the Same Wrench?
Most modern units use a standard 1/4-inch hex key.
However, some brands use proprietary tools. Always check your model specifications.
Should You Keep One on Hand?
Yes, keep a wrench in your laundry cupboard as you never know when it might save your garbage disposal.
It’s a $5–$15 tool that can save a $300 replacement.
Final Thoughts
A garbage disposal wrench is often the fastest and cheapest way to fix a humming but jammed unit.
Before replacing your disposal, try this simple solution first.