Garbage Disposal Humming? – Troubleshooting Guide [2022]

Do you hear a humming noise coming from your garbage disposal when you run it? Could this be a new sound that needs to be taken seriously? We can help you with garbage disposal humming but not working issue, so don’t worry.

There could be a problem deep inside your garbage disposal if it’s humming but not working. If you want to resolve the issue quickly, you should act immediately. Otherwise, your garbage disposal may stop working altogether as a result of the problem.

Many garbage disposal humming but not working problems can be resolved by yourself. It is always a good idea to call a plumber or an electrician when in doubt.


Fixing garbage disposal humming caused by overheating

  1. Turning off the unit will allow it to cool down.

  2. At the bottom of the garbage disposal unit, there is a reset button. Press the button to reset the unit.

  3. If the unit still doesn’t work, check the circuit breaker for a tripped switch and turn it off and then back on.

  4. Run some cold water after pressing the reset button.

  5. Dispose of the garbage by turning on the disposal.


Humming of a garbage disposal can be caused by several factors

The garbage disposal needs to be repaired if it is humming but not working. To figure out what’s causing the problem, you first need to determine what’s causing it so you know exactly how to proceed. You may experience these symptoms for one of the reasons listed below, or for another reason.

  • The grinding chamber or unit has become jammed with something.

  • Grinding isn’t working properly because of a clogged grinder.

  • A garbage disposal may be humming but not working, or a circuit breaker might trip due to overuse or overheating.

  • Overuse of kitchen appliances, electrical faults, power outages, and other factors can trip a circuit breaker. This should take you no more than a few minutes to fix.

  • What is the age of your garbage disposal unit in terms of wear and tear? If the garbage disposal unit needs to be replaced, there is a possibility you will need to do so.

  • A garbage disposal unit’s reset button can fix a variety of issues, including humming.

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In the event that none of these issues apply to your situation, and you are unable to figure out the cause, contact a professional.


The best way to fix a humming garbage disposal

Items that are jammed

Check your garbage disposal with a flashlight to see if anything is stuck. Keep your fingers away from the machine!

Here are some steps you can take if you find an item that is jammed:

  1. Turn off the circuit breaker and disconnect the power source from the garbage disposal.

  2. In the hole beneath the unit, insert an Allen key and wiggle it around to dislodge what’s stuck.

  3. It’s great if the humming has stopped after you turn on the power and start the garbage disposal! In this case, switch the unit off again and proceed to the next step.

  4. To unclog a garbage disposal jam, insert a long-handled item, such as a broomstick, or use garbage disposal cleaner.

  5. Pull the item out using needle nose pliers once you’ve cleared the jam.

  6. Add cold water to the sink once the power has been restored.

  7. Check that the garbage disposal is working by turning it on.


An important warning

Clogs should never be cleared with chemical cleaners. It is possible for these cleaners to damage parts of your garbage disposal.


Grinding machine clogged

To fix a clogged grinder, follow these steps: Put too much food in it or choose a grinder with a high horsepower.

  1. You can unplug or turn off the garbage disposal unit’s circuit breaker.

  2. The Allen key should be gently turned back and forth in the garbage disposal’s bottom hole to remove the clog.

  3. The Allen key should be moved continuously if you feel a clog.

  4. Try using a long rod to remove a clog at the top of your sink.

  5. Top of the sink, remove garbage disposal unit items with pliers.

  6. Connect the power source to the garbage disposal.

Cold water should be run through the garbage disposal again.


An overheated environment

Whenever garbage disposal units are overused or overfilled, they overheat. If you follow the manufacturer’s recommendations on what kind of food to put in it, and how much, you can avoid this problem.

If your garbage disposal has overheated, follow these steps to fix it:

  1. Allow the unit to cool down after turning off the garbage disposal.

  2. After a few minutes, if it’s back to normal, turn it back on and continue to use it.

  3. Turn the unit off and press the reset button if it doesn’t work, or if it’s still humming.

  4. Make sure it is turned on again. Ensure that the trip hasn’t switched at the circuit breaker if it doesn’t come back on. Place it in the “on” position if it has already been positioned in the “neutral” mark.

  5. Run some cold water after pressing the reset button.

  6. Dispose of the garbage by turning on the disposal.

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In case it is not working or still humming, you should get in touch with an electrician.


A circuit breaker has been tripped

A circuit breaker can be tripped by overheating, as well as other electrical faults. Using other electrical appliances in the kitchen can also overload the system.

For the garbage disposal to work properly, it is necessary to check the circuit breaker.

Kitchen appliances or the entire kitchen should have different labels. Once the disposal switch is in the neutral position, you should be able to use it again.

The only alternative is to contact a licensed electrician if this is not the case.


Wear and tear associated with garbage disposal

There is a possibility that your garbage disposal is humming as a result of general wear and tear. The life of garbage disposals is not guaranteed, but they tend to last a long time. It may not be possible to fix the humming if the device is out of warranty. Garbage disposals may need to be replaced soon.


It’s time to reset

However, there is some good news! There might just be a need to reset it. If the unit is fairly new, there may be humming but no jams, electrical problems, or overheating. Restarting the garbage disposal is as simple as pushing the reset button.

It is highly recommended that you contact the manufacturer if you are still experiencing problems, especially if the unit is not old. If your unit is still under warranty, they can give you some advice or send someone out to inspect it for free.


Frequently Asked Questions

Flywheel is not stuck, but garbage disposal is humming?

You can reset the unit if the flywheel isn’t stuck but the unit is humming. To troubleshoot this issue, follow the tips under “Need a Reset”. Overheating and wear and tear are also possible causes of problems.


Do you have a garbage disposal that hums but spins freely?

Despite spinning freely and grinding food, your garbage disposal unit may still be humming. Most often, the problem occurs because food is forced down the drain, the wrong food is put in it, or the drain is overused. Follow our advice on how to fix the overheating issue if the unit is overheating.

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Additionally to learning how to use the unit, you will also learn which foods should not be put down the garbage disposal by following the manufacturer’s instructions.

In addition to hot grease and oil, coffee grounds are also a problem (1). Seeds, stringy fruits, and vegetables are also a problem. It is always a good idea to check the manufacturer’s instructions since these may vary depending on the brand.


How do I stop the garbage disposal from humming and smoking?

Turning off the unit and fixing the issue is very important when you hear humming. A unit that doesn’t receive power will start smoking if there is an electrical problem. A burnt-out motor or circuit is evidence of this.

These are the steps you can take to troubleshoot this problem: jamming, clogging, overheating, and general electrical issues.

  1. Ensure that a power source has been turned off and that the unit has been shut down.

  2. See if anything is visible stuck in the opening. It can be removed with pliers if this is the case.

  3. Rotate the grinding plates with a broom handle inserted into the opening to ensure they are no longer clogged.

  4. The Allen key can be inserted into the bottom hole and turned that way if this is not possible.

  5. Make sure the unit is working again after running cold water to ensure there are no clogs.

  6. Continue using your garbage disposal if it works normally and there is no burning or smoking.

  7. A licensed electrician should be contacted if it continues to hum or smoke. You may only have the option of buying a new garbage disposal here.


Leaking and humming garbage disposals?

Humming and leaking garbage disposals are often caused by one of three issues: leaky sink flanges, broken seals inside the unit, or leaking drain lines.

A new sink flange needs to be applied after removing the old seal, cleaning off the plumber’s putty, and reapplying the seal. You should get a new flange and tighten it too if yours has been tightened with screws.


How to stop garbage disposals from humming – Conclusion

Humming garbage disposals can be quite alarming, but they are usually easy to fix. I hope your unit is functioning normally again after you’ve checked the circuit breaker, unclogged the unit, or tightened some connections.

A new garbage disposal unit may be needed if the unit continues to hum or smokes. You should always be safe rather than sorry, despite the fact that this can be an expensive fix.

Lastly, make sure you use your garbage disposal correctly to avoid all these problems. The unit should never be fed the wrong foods, overloaded, or forced to accept objects.

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