Fix Garbage Disposal Repairs DIY

How To Fix the Most Common Garbage Disposal Problems

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Garbage disposals are a convenient and valuable appliance in any kitchen, but they can also experience various problems that will cause them to stop working.

So, how can I Fix Common Garbage Disposal issues?

In this Garbage Disposal Troubleshooting Guide, we will explore the Top Six reasons garbage disposals do not work – and provide step-by-step instructions on how to repair each of those problems.

Before we start, it may be worth checking the manufacturer’s date on your garbage disposal to avoid costly repairs or hiring a professional.

According to Rooter Hero , a garbage disposal should last only 8-10 years. If yours is older than that, it may be time to replace it rather than repair the old one.

How to Fix a Stuck Garbage Disposal 

1.  How to “Unclog” a Garbage Disposal

How to Unclog Garbage Disposal
How to Unclog Disposal – www.besthomegear.com

Identifying a Garbage Disposal Clog

  • Signs of a clogged disposal (e.g., slow draining, unusual noises)

Of all the typical reasons garbage disposals stop working, the number one issue is a clog caused by food (i.e., turkey or chicken bones) or something dropped into the sink and disposal that isn’t supposed to be there.

Signs of a clogged disposal include slow draining, unusual noises such as grinding or clicking, and water backing up into the sink.

Identifying a clog in a garbage disposal involves conducting a simple visual inspection. 

To identify a clog, turn off the disposal’s power and shine a flashlight into the drain opening. Look for visible blockages, such as food particles, utensils, or other debris that may obstruct the disposal’s blades.

Listen for unusual sounds or vibrations that indicate a deeper clog in the disposal unit.

If the clog is not visible from the drain opening, further investigation and removal of the obstruction may be required with tools such as a plunger or an Allen wrench.

Clearing the Disposal Clog Safely: How to Unclog

  • Turn off the power to the disposal.
  • Use a flashlight to inspect the inside of the disposal for obstructions, and remove any visible obstructions.
  • If you suspect the drain below the disposal is clogged, use a sink plunger to clear the debris and unblock the drain.
  • Run water to be sure the clog is cleared.

Should you use liquid “Drain Cleaner” With a Garbage Disposal?

While drain cleaners may effectively clear clogs in typical drains, they should never be used in garbage disposals.

Here’s why:

  1. Chemical Reactions: Many drain cleaners contain potent chemicals that react with substances, such as grease, oils, and food particles, causing drain clogs.
  2. The combination of lye and aluminum found in drain cleaners can react with water, raising temperatures to near boiling. This reaction can cause cracks in pipes and joints, eventually leading to PVC pipe failure.

2.  How to Fix “Jammed” Garbage Disposal

fixing a jammed garbage disposal
How to Fix a Jammed Garbage Disposal – www.besthomegear.com

How to Recognize Garbage Disposal is Jammed

When a garbage disposal is jammed, it indicates that something has fallen into the sink and disposal, preventing the blades from turning.

  • Indications of jammed disposal (e.g., humming sound, disposal not working)
  • Precautions before attempting to fix the jam

How to fix a Jammed Garbage Disposal:

  • Always turn off the disposal’s power first!!
  • Visually inspect to find and clear obstructions (Such as Silverware, Chicken Bones, etc.).
  • Use an Allen wrench (Hex Key), usually included with the disposal, and find the Key Slot at the bottom of the disposal.
  • Then crank the disposal over manually, turning the blades clockwise, to confirm that the obstruction has been removed.
image of unjamming a garbage disposal with allen wrench
Use an Allen Wrench to Turn Garbage Disposal Blades – www.besthomegear.com
  • Remove any additional debris you spot that is causing the jam.
  • Run water for at least 1 minute through the garbage disposal
  • Test the disposal to ensure it’s working properly

3.  How to “Reset” Garbage Disposal:

reset button on garbage disposal image

Understanding the Garbage Disposal Reset Feature

  • Why do disposals have a reset button?

Is your garbage disposal Not Turning On? Check the reset button located at the bottom of the garbage disposal.

The reset button is a safety feature that protects the motor from damage caused by overloads or jams.

When the disposal encounters a blockage or exceeds its electrical capacity, the reset button automatically trips, cutting off power to the unit. This prevents the motor from overheating or becoming damaged. 

  • When to use the reset button

Once the debris has been disposed of, proceed to the steps below for the reset button.

Pressing the reset button restores power to the disposal. It allows it to resume functioning, provided the underlying issue causing the malfunction has been addressed.

The reset button should be used whenever the disposal stops working abruptly, emits unusual noises, or fails to respond to regular operation.

Resetting the Disposal

  • Locate the reset button on the disposal unit
  • Press the reset button firmly
  • Test the disposal to see if it starts working again

4.  How to Fix “Leaking” Garbage Disposal

Image of leaking disposal

Locating a Leak in a Garbage Disposal

  • Where do Leaks Occur in Garbage Disposals

Leaks in garbage disposals commonly occur at several key points, including the sink flange, dishwasher connection, drain pipe, and disposal unit itself.

Sink flange leaks can occur due to worn-out gaskets or loose mounting screws, while leaks at the dishwasher connection may result from a faulty hose clamp or damaged seal.

Drain pipe leaks typically stem from loose or deteriorated connections, and leaks within the disposal unit can be caused by cracks in the housing or damaged internal components. 

How to Identify a Leaky Disposal

finding leak on a garbage disposal
Finding Leak on Garbage Disposal – www.besthomegear.com

To identify leaky disposal, visually inspect these areas for signs of water accumulation, dampness, or corrosion. Check for water dripping or pooling beneath the disposal unit, around the sink flange, or along the drain pipe.

Note: Garbage Disposal leaks can come from:

  • Loose garbage disposal (tighten bracket at sink connection)
  • Loose Pipes or fittings going into or out of the Disposal
  • Cracked Garbage Disposal

Run water through the disposal and observe for any visible leaks or water escaping from areas where connections are made.

Listen for hissing or gurgling sounds that may indicate a leak within the disposal unit. Addressing these leaks promptly can prevent water damage and ensure your garbage disposal functions properly.

How to Fix a Leaking Garbage Disposal

  • Tighten any loose pipes or connections with a wrench or screwdriver
  • Replace any worn-out seals or gaskets
  • Check for any cracks in the garbage disposal unit, and replace it with a similar unit.

5.  How to Fix “Electrical Issues” with Disposal

image of electrical connections on garbage disposal
Electrical Connections at Garbage Disposal – www.besthomegear.com

Checking the Power Supply

  • Verify that the disposal is plugged in securely
  • Look for any Loose Wires; if discovered, ensure the power is off before proceeding. 
  • Push the Reset button, then test by turning the disposal on 
  • Test the outlet that the Disposal is plugged into – with another device, such as a corded drill or lamp, to ensure the outlet is working

Resolving Disposal Electrical Problems (Additional Steps)


6.  Fix “Overloaded” Garbage Disposal:

image of an overloaded garbage disposal - best home gear
Overloading Garbage Disposal – www.besthomegear.com

How to Avoid Overloading a Garbage Disposal

  • Guidelines for proper disposal usage to prevent overloads

It’s crucial to follow proper usage guidelines and avoid overloading garbage disposals.

Firstly, always avoid putting any large or hard items, such as bones, fruit pits, or hard shells, down the disposal, as these can damage the blades and jam the motor.

Instead, cut larger food waste into smaller pieces before disposing of it. Additionally, avoid pouring fats, oils, and grease down the disposal, as these substances can solidify and cause clogs.

Run cold water before, during, and after using the disposal to help flush out food particles and prevent them from accumulating.

Lastly, the disposal should be used regularly to keep it in good working condition, but avoid overloading it with too much waste at once.

Following these guidelines can extend the lifespan of your garbage disposal and minimize the risk of overloads and malfunctions.

Dealing with an Overloaded Disposal

  • Turn off the disposal immediately
  • Remove excess food waste from the unit
  • Use a hex key to rotate the disposal’s blades manually
  • Gradually restart the disposal and avoid overloading in the future

Importance of Disposal “Preventive Maintenance”

garbage disposal maintenance photo
Maintaining a Garbage Disposal – www.besthomegear.com

Proper maintenance is vital to prevent issues with your garbage disposal. Follow these essential tips to keep your disposal in optimal condition:

  • Regular Cleaning: Clean your garbage disposal regularly by running cold water and a few ice cubes or citrus peels through it to remove buildup and odors.
  • Avoid Grease and Oil: Do not pour grease, oil, or fats down the disposal, as these substances can solidify and cause clogs.
  • Use Cold Water: Always use cold water when running the disposal to help solidify food waste, making it easier to break down.
  • Cut Food Waste: Cut large food items into smaller pieces before disposing of them to prevent overloading and jamming the disposal.
  • Run the Disposal: Use it regularly to prevent rust and corrosion, but avoid overloading it with waste.
  • Check for Leaks: Periodically inspect the disposal for leaks, tighten any loose connections, or replace worn-out seals as needed.
  • Avoid Non-Food Items: Never put non-food items, such as utensils, glass, plastic, or metal, into the disposal, as they can damage the blades and motor.

By following these maintenance practices, you can prolong your garbage disposal’s lifespan and reduce the likelihood of clogs, jams, and leaks.

Conclusion:

By understanding the common problems that cause garbage disposals to stop working and following the step-by-step repair instructions in this DIY garbage disposal repair guide, you can troubleshoot and fix any issues with your disposal.

Regular maintenance and proper usage can also help prevent these problems from recurring, ensuring the smooth operation of your garbage disposal for years to come.

Additional Reading and References:

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Kevin:  Author and Publisher at Best Home Gear

As the publisher at Best Home Gear, Kevin draws on 25+ years in Construction, Real Estate, and Property Management; providing DIY Advice for Homes, and Lawn and Garden improvements, Along with Expert Product Reviews.

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