Common Causes and Solutions
1. Jammed Blades
One of the most common reasons for a humming garbage disposal is jammed blades. Food particles, bones, or other debris can get lodged between the impeller blades, preventing them from spinning.
Solution:
- Turn off the power to the disposal to ensure safety.
- Use an Allen wrench to manually turn the blades from underneath the unit. Most disposals have a small opening at the bottom where you can insert the wrench to rotate the blades and dislodge any jams. Be sure to remove any visible debris inside the disposal before turning it back on.
2. Overloaded Motor
Garbage disposals can overheat if overloaded with too much food waste at once, causing the motor to trip the reset button.
Solution:
- Locate the reset button on the bottom or side of the unit and press it to reset the motor.
- After resetting, try running the disposal again with cold water to see if it resumes normal function.
3. Faulty Motor or Components
If the disposal continues to hum but doesn’t function even after checking for jams or resetting, there might be an issue with the motor or other internal components.
Solution:
- At this point, it may be best to call a professional plumber to inspect and possibly repair or replace the unit. Attempting to fix electrical or mechanical issues without expertise can be risky.
4. Electrical Issues
Loose wiring or other electrical problems can also cause your garbage disposal to hum without working properly.
Solution:
- First, ensure the disposal is plugged in correctly and the outlet is functioning.
- Check your circuit breaker to make sure it hasn’t tripped.
- If everything appears fine, yet the problem persists, it might be an issue best handled by a professional.
Tips for Preventing Future Issues
To keep your garbage disposal running smoothly, consider these preventive tips:
- Avoid fibrous foods like celery, corn husks, or potato peels, which can wrap around the blades and cause jams.
- Always run cold water when operating the disposal to help solidify any fats or oils and flush them down the drain.
- Clean your disposal regularly with a mixture of ice cubes and rock salt to remove buildup and keep it smelling fresh.
When to Call a Professional
If you’ve tried troubleshooting and the issue persists, or if you’re uncomfortable attempting these fixes yourself, it’s time to call in the professionals. At Plumb Intended, we’re here to help with all your plumbing needs, including garbage disposal repair and replacement.