How to Fix a Garbage Disposal: Common Problems
A garbage disposal that hums, jams, or will not turn on at all is a common kitchen headache. The good news is that many disposal problems have simple fixes you can do yourself in a few minutes, often without any tools at all. Knowing these quick steps can save you a service call.
This guide covers the most common garbage disposal problems, how to fix them safely, and the important safety rules to follow. One rule matters above all others: never put your hand into the disposal, even when it is off.
Common Garbage Disposal Problems
Most disposal trouble falls into a few familiar patterns:
- It hums but does not spin, which means it is jammed
- It is completely silent, which usually points to power or the reset button
- It drains slowly or backs up from a clog
- It leaks from the top, bottom, or side
- It makes a loud rattling sound from a stuck object
How to Fix a Jammed Disposal
If your disposal hums but will not turn, something is stuck in the grinding chamber. First, turn off the disposal and unplug it or switch off its breaker. Safety comes first, always.
Look under the sink for a small hex or Allen wrench slot in the center of the bottom of the unit. Insert the wrench and turn it back and forth to free the stuck impeller. If there is no wrench slot, you can insert a wooden spoon handle from the top to gently turn the blades. Once it moves freely, remove any debris, restore power, and press the reset button before testing it.
How to Fix a Disposal That Will Not Turn On
If the disposal is completely silent, it is almost always a power issue. Check that it is plugged in, then look for the red reset button on the bottom of the unit and press it. If that does not help, check your breaker panel for a tripped breaker. If it still will not run after resetting both, the motor may have failed and the unit likely needs replacing.
When to Call a Plumber
Call a licensed plumber if the disposal leaks, if it still will not run after resetting the power and breaker, if water backs up into the sink and will not clear, or if you smell a burning odor when it runs. Leaks and motor problems are not quick DIY fixes, and a pro can repair or replace the unit and check the connected plumbing while they are there.
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Frequently Asked Questions
Conclusion
Many garbage disposal problems, from jams to a unit that will not start, come down to a stuck impeller or a tripped reset, and both are easy and safe to fix once the power is off. Keeping grease and tough scraps out of the disposal prevents most trouble in the first place.
When the unit leaks, fails to run after a reset, or backs up for good, it is time for a professional. Our licensed local plumbers serve Peoria, Arizona and Peoria, Illinois any time of day and can repair or replace your disposal quickly.
