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Garbage Disposal Troubleshooting Tips

July 15, 2024

Is your garbage disposal not working? Wondering if you can fix it yourself?

If so, you’ve come to the right place. In this post, we’ll be going over some common issues and how to fix them. From jams to mysterious hums, you’ll find out how to troubleshoot these issues and when to call in the professionals. Keep reading to learn more!

Safety First: Precautions Before Troubleshooting

Most garbage disposals can pose serious risks if not handled appropriately. First things first, you want to make sure the unit is completely powered off before troubleshooting. That means either unplugging it or shutting off the circuit breaker.

And remember, never place your hands inside the device – the sharp blades can cause severe injuries.

Last but not least, always refer to the unit’s manual for specific safety guidelines before attempting any maintenance. After all, each model is unique and may require specific safety measures.


Common Garbage Disposal Issues

Symptoms that indicate a malfunctioning disposal unit include a humming sound (as opposed to a grinding noise), water leaks, slow draining, and failure to turn on.

Fixing Power Issues

If your disposal isn’t turning on, it’s likely a problem with the power supply.

Step 1: Check the Power

garbage disposal plug

Start by checking if the disposal unit is properly connected to the power outlet – it’s a simple step, one that’s often overlooked.

Step 2: Check the Breaker

circuit breaker

If the power cord is plugged in, but the unit is still not working, check the built-in circuit breaker. The unit may not turn on if it’s been tripped.

For instance, using the garbage disposal at the same time as other high-power appliances like a toaster can cause a tripped circuit breaker.

Step 3: Press the Reset Button

when to reset your garbage disposal

If the garbage disposal still isn’t turning on, press the reset button on the bottom of the unit. If the button keeps popping out, the unit may need to be replaced.

Supply:

  • None

On average, you’ll need to replace your garbage disposal every 10 to 15 years.

Fixing a Clogged or Jammed Garbage Disposal

Clogs usually happen when food waste or other debris gets trapped in the garbage disposal. Fortunately, there’s a relatively easy fix.

Supplies:

  • Hex wrench
  • Flashlight

Step 1:

Using a flashlight, check to see if you can see the clog in the disposal.

flashlight

Step 2:

If you can see the clog, use a hex wrench or a pair of pliers to manually turn the flywheel. That will free the disposal from whatever is causing the blockage.

pliers

Step 3:

After you’ve cleared the jam, run cold water and turn the disposal on and off in quick bursts. That will help clear any remaining debris and ensure your disposal is ready to be used again.

fill sink

Never reach in with your hands to fix a clogged garbage disposal. Remember, safety first.

Fixing a Leaking Disposal

Common areas where leaks may occur include the sink flange, dishwasher hose, and discharge drainpipe.

Supplies:

  • Screwdriver
  • Plumber’s putty
  • Clamps or bolts (optional)
  • New gasket (optional)
disposal mounting assembly

Step 1:

If the leak is at the sink flange, it may be due to deteriorating sealant or loose bolts. To fix this, you’ll need to replace the seal and ensure the mounting apparatus is tightly secured.

removing garbage disposal

Step 2:

If the leak is at the hose connecting the dishwasher to the disposal, you can fix the issue by tightening or replacing the relevant connections, including clamps or bolts.

garbage disposal bolts

Step 3:

If the discharge drainpipe is leaking, replacing the old gasket and ensuring the bolts are tight should do the trick.

Consider getting a new garbage disposal if water is leaking from the bottom of the unit.

Resetting Your Garbage Disposal

From time to time, you may need to reset your garbage disposal. For example, you may need to reset the unit if the internal circuit breaker has tripped. Here’s how to do it

Supplies:

  • None

Step 1:

Locate the reset button, which is usually found on the underside or side of the under-sink.

how to reset garbage disposal

Step 2:

Firmly press the reset button at the bottom.

If the button immediately pops back out after you press it, wait 10 minutes for the unit to cool down before trying again – that will allow the motor to reset.

when to reset your garbage disposal

Prolonging Your Garbage Disposal’s Lifespan

active garbage disposal cleaner

There are several things you can do to extend your garbage disposal’s lifespan.

For starters, you want to make sure you’re using it correctly. This means running cold water while the garbage disposal is running and for 10 to 20 seconds afterward – that will help flush down any remaining particles and prevent clogs.

And remember, never use hot water – it can cause fats and grease to liquefy and stick to the internal components, leading to buildup. Also, never put hard or fibrous items like popcorn kernels and celery down the disposal as these can cause jams and impact the blades.

Cleaning Your Garbage Disposal Unit

It’s also a good idea to clean your garbage disposal once every two weeks. That will help prevent odors from developing.

For the best results, we recommend using ACTIVE Garbage Disposal Cleaner.

Supplies:

  • ACTIVE Garbage Disposal Cleaner
disposal faucet full stream

Step 1:

Run the faucet for one minute with hot water.

active garbage disposal cleaner tablet

Step 2:

Reduce the water to a slow trickle, turn the faucet away from the drain, and place one ACTIVE Garbage Disposal Cleaner tablet inside the drain.

kitchen sink drain

Step 3:

Run the garbage disposal and water until all of the foam drains, then turn off the unit.

active gdc transparent

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When to Seek Professional Help

If troubleshooting fails or there’s leakage from the reset button, it may be time to seek professional help.

Other red flags include a reset button that does not stay depressed and smoke from the unit.

In some cases, you may need to replace the garbage disposal entirely. For example, this may be necessary if there are unfixable leaks, blown motors, or factory defects that cannot be repaired.

Depending on the type of unit that you choose, the cost of replacing a garbage disposal can range anywhere from $75 to $950.


DIY Fixes for Specific Garbage Disposal Problems

How to Fix a Disposal With Humming Noises

In some cases, a humming noise may indicate an electrical problem. Here are a few steps you’ll want to take.

Supplies:

  • None

Step 1:

Look for a tripped GFI or circuit, and press the reset button as necessary.

when to reset your garbage disposal

Step 2:

Check the power cord and make sure it is securely plugged in. Also, be sure to inspect the motor and fan for any debris or obstructions

garbage disposal plug

If these troubleshooting steps fail to fix the humming noise, it may indicate a more severe issue that requires professional repair.

How to Fix a Slow Draining Disposal – Baking Soda and Vinegar Method

To clear a slow-draining garbage disposal, you can try using baking soda and vinegar.

Supplies:

  • Baking soda
  • White vinegar
  • Boiling water
baking soda and vinegar in drain

Step 1:

Pour a mixture of baking soda and vinegar down the drain opening – you may notice some bubbling.

boil water 1

Step 2:

Pour boiling water down the drain.

You can also use apple cider vinegar if you don’t have white vinegar.

How to Fix a Slow Draining Disposal – Plunger Method

If the disposal is still draining slowly after using vinegar and baking soda, you can try the following steps:

Supplies:

  • Plunger
  • Bucket (optional)

Step 1:

Use a plunger to dislodge any blockages. Remember to use medium pressure to avoid damaging the disposal.

using a plunger

Step 2:

If the problem persists, you might need to remove and clean out the p-trap under the sink.

To do that, unscrew the metal slip nuts. Remember to place a bucket underneath the trap before removing it to prevent any messes.

p trap

Dealing With a Smoking Garbage Disposal

If you notice smoke coming from the disposal, turn off the power immediately, inspect for any burnt wires, replace or reconnect as needed, and retest the unit’s functionality. Remember, when dealing with electrical issues, safety should always be your top priority.


Fixing a Broken Garbage Disposal

While disposal units can experience various issues, most of them can be solved with a little patience and a willingness to get your hands dirty.

In this post, we’ve gone over how to troubleshoot common problems, from power supply issues to clogs and have provided you with practical maintenance tips to prevent these issues from recurring.

When in doubt, don’t hesitate to call in professional help. After all, a smoothly running garbage disposal is key to a hassle-free kitchen experience!

Key Takeaways

  • Prioritize safety by turning off power and never placing hands inside the disposal unit
  • Common issues with garbage disposals include power supply problems, clogged or jammed disposals, and leakages
  • Some malfunctioning garbage disposals may need professional repair, especially if DIY troubleshooting fails

What to Do If Your Garbage Disposal Stops Working – FAQs

How can I reset my garbage disposal?

Firmly press the garbage disposal reset button on the bottom of the unit. If the button pops back out, wait for about 10 minutes before trying again to allow the unit to cool down.

How should I maintain my garbage disposal to prolong its lifespan?

To prolong the lifespan of your garbage disposal, always run cold water while it’s in use, avoid putting hard or fibrous items into it (e.g. corn husks, coffee grounds), and clean regularly with ACTIVE Garbage Disposal Cleaner.

When should I seek professional help for my garbage disposal?

You should seek professional help if troubleshooting fails, if there’s leakage from the reset button, smoke emission, or if the unit does not turn on after initial troubleshooting.

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Picture of Ethan Clarke

Ethan Clarke

Ethan Clarke is a seasoned expert in appliances and household waste systems. Referencing his extensive experience as an appliance repairman, Ethan shares his invaluable knowledge through detailed maintenance & troubleshooting manuals. Ethan’s insights help homeowners understand and maintain their appliances efficiently, ensuring longevity and optimal performance. He’s here to provide practical, easy-to-follow advice for all your appliance needs.

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