Why Is My Garbage Disposal Humming but Not Spinning? Causes & Solutions
If your garbage disposal is humming but not spinning, the motor is likely running, but something is preventing the blades from turning. This common problem usually indicates a blockage, a stuck flywheel, or a worn-out component. The good news is that with the right steps, you can often fix this issue on your own.
In this guide, we will explore the causes of a humming garbage disposal and provide practical tips for garbage disposal maintenance so you can prevent the same thing from happening in the future.
Common Causes of a Humming Garbage Disposal
A humming noise from your garbage disposal typically signals that the unit has power, but something is preventing the blades from spinning. Here are the most common reasons for this problem:
1. Jammed or Stuck Flywheel
One of the most frequent causes of a humming garbage disposal is a jammed flywheel. Food scraps or foreign objects (like silverware) may have fallen into the disposal, causing the flywheel to get stuck.
- Solution: Turn off the disposal’s power by unplugging it or turning off the circuit breaker. Then, use the hex wrench that comes with most disposals to turn the flywheel from below manually. Insert the wrench into the bottom of the disposal unit and twist it back and forth until the jam is cleared.
2. Overloaded or Tripped Motor
If you hear a hum but the disposal isn’t spinning, the motor could be overloaded. Modern disposals are equipped with a reset button to protect the motor from overheating during jams or overuse.
- Solution: Locate the tiny red reset button underneath the disposal unit. Press it to reset the motor. If the disposal doesn’t respond, wait a few minutes and try again. If it still won’t work, check if the breaker has tripped.
3. Blunt or Worn Blades
Over time, the grinding blades inside the disposal can wear down, making it harder for the unit to chop up food waste effectively. This can cause the disposal to struggle and hum instead of spin.
- Solution: If the blades are severely worn, they might need to be replaced, or the entire unit may need an upgrade. In this case, it’s best to call a professional such as Cummings Plumbing.
4. Faulty Motor or Electrical Issue
If your disposal is humming but not spinning despite following the troubleshooting steps, the problem could lie in the motor or electrical wiring.
- Solution: Check the power connection and wiring to ensure there are no loose or damaged cables. If everything appears fine but the disposal still won’t work, the motor may be faulty, requiring professional assistance or a unit replacement.
DIY Troubleshooting Steps for a Humming Disposal
If you encounter a humming but non-spinning garbage disposal, here’s a step-by-step guide to troubleshoot and fix it:
Step 1: Cut the Power
For safety, always cut off the power before attempting any maintenance. Unplug the unit or switch off the circuit breaker dedicated to the disposal.
Step 2: Check for Visible Obstructions
Look inside the disposal with a flashlight (never use your hand) to see if you can spot any visible blockages. If you see something stuck, use pliers or tongs to remove it.
Step 3: Use the Hex Wrench
Most disposals come with a hex wrench (or Allen wrench). Insert it into the hex-shaped hole at the bottom of the unit and turn it back and forth to manually dislodge any jammed items.
Step 4: Press the Reset Button
After clearing any obstructions, press the red reset button underneath the disposal. This should reset the motor. If the button clicks and stays in, your disposal is ready to be tested.
Step 5: Restore Power and Test
Turn the power back on and test the disposal. If it spins freely, you’ve successfully cleared the jam. If it still hums or remains unresponsive, you may need to consult a professional plumber such as Cummings Plumbing.
Garbage Disposal Maintenance Tips
Keeping your garbage disposal in good working condition can prevent many of these issues from happening. Here are some essential garbage disposal maintenance tips:
1. Run Water While Using the Disposal
Stans AC recommends running cold water when using your garbage disposal. Cold water helps solidify fats and grease, making them easier to chop. Keep the water running for a few seconds after turning off the disposal to flush out any remaining particles.
2. Clean the Disposal Regularly
A good cleaning routine can keep your disposal fresh and functional. Use a small brush to clean around the edges and under the rubber splash guard where food particles can get stuck. Grinding ice and citrus peels occasionally will help remove buildup and keep odors at bay.
3. Perform Routine Inspections
Check your disposal periodically for any signs of wear and tear. Look under the sink to ensure there are no leaks, rust, or loose connections. Identifying minor issues early can prevent more significant problems in the future. If this sounds too much to you, you can always contact Cummings Plumbing for affordable garbage disposal repair services!
Frequently Asked Questions (FAQs)
Why does my garbage disposal keep getting stuck?
Your disposal may be getting stuck due to inappropriate items being put down the drain, like bones or fibrous foods. Regular cleaning and proper usage can prevent frequent jamming.
Is it safe to use chemical drain cleaners in my garbage disposal?
No, chemical drain cleaners can damage the disposal’s components. It’s better to use a disposal-specific cleaner or a mixture of baking soda and vinegar for cleaning.
How long does a typical garbage disposal last?
With proper care, a good-quality garbage disposal can last 10-12 years. Regular maintenance is crucial in extending its lifespan.
Final Thoughts
A humming garbage disposal is often a sign that the unit needs attention. Understanding the causes and taking the right steps can save you from the hassle of a major repair. Following proper garbage disposal maintenance tips can keep your kitchen running smoothly and avoid costly fixes.
Don’t let a simple issue turn into a costly repair. Contact Cummings Plumbing today for expert garbage disposal maintenance and keep your kitchen functioning without a hitch! With the right care and attention, you can keep your garbage disposal humming along smoothly for years without the headache of unexpected breakdowns.
