Why Is My Garbage Disposal Making Loud Noises?

Garbage disposals are the unsung heroes of modern kitchens. They make cleanup easier by grinding up food scraps, keeping your kitchen more hygienic and reducing waste. However, when your garbage disposal starts making loud or unusual noises, it can disrupt the harmony of your home and leave you wondering what went wrong. Let’s dive into the common causes behind a noisy garbage disposal, what those sounds might mean, and how to fix or prevent these issues.

‍

Common Causes of Loud Noises in Garbage Disposals

‍

Garbage disposals are designed to operate quietly—or at least at a tolerable noise level. When they get loud, it’s usually a sign that something isn’t right. The causes can vary, but they often fall into a few categories:

‍

1. Foreign Objects Stuck in the Disposal:

‍

The most common reason for loud noises is something being stuck in the disposal that shouldn’t be there. Items like silverware, bones, bottle caps, or other non-food materials can accidentally fall into the disposal. When the blades hit these objects, they create a loud clanging or rattling sound.

‍

2. Loose or Damaged Components:

‍

Over time, parts inside the garbage disposal, like the impellers or mounting screws, can become loose or worn. If the internal components aren’t properly secured, they may rattle or vibrate when the disposal is running.

‍

3. Worn Bearings or Motor Issues:

‍

The motor in a garbage disposal is built to last, but it isn’t immune to wear and tear. If the bearings inside the motor are worn out, you may hear a loud humming or grinding noise, even when nothing is inside the disposal.

‍

4. Hard Food Items:

‍

Certain foods, like bones, fruit pits, or corn husks, can be too tough for your disposal to handle. These items can strain the blades, causing a grinding noise as the disposal struggles to process them.

‍

5. Improper Installation:

‍

If your garbage disposal wasn’t installed correctly, it may not sit securely under the sink. This can cause it to vibrate excessively, leading to loud noises during operation.

‍

Decoding the Noises: What They Mean

‍

Each type of noise your garbage disposal makes can give you clues about what’s causing the issue. Here’s a quick guide to interpreting those sounds:

‍

• Rattling or Clanging: Likely caused by foreign objects like utensils or other debris stuck in the disposal.
• Grinding: This could indicate that something hard, like a bone or fruit pit, is being processed or that the blades are damaged.
• Humming: If the disposal hums but doesn’t grind, it might mean the motor is jammed or the flywheel isn’t turning.
• Screeching: This high-pitched sound can result from worn-out bearings or other internal components.

‍

What You Can Do to Fix It

‍

The good news is that many garbage disposal noises can be addressed with a little troubleshooting. However, safety should always come first. Before attempting any fixes, make sure to turn off the power to the disposal to avoid accidents. Here are some steps you can try:

‍

1. Inspect for Foreign Objects:

‍

Using a flashlight, look into the disposal to see if any non-food items are stuck. If you spot something, use tongs or pliers to carefully remove the object. Avoid using your hands, even if the disposal is turned off.

‍

2. Reset the Disposal:

‍

Most garbage disposals have a reset button located on the bottom. Press this button to see if it resolves the issue. Sometimes, a reset can clear minor jams or restore power after an overload.

‍

3. Use an Allen Wrench to Unjam the Flywheel:

‍

Many disposals come with an Allen wrench that can be inserted into the hole on the bottom of the unit. Turning the wrench manually will help free up the flywheel if it’s jammed.

‍

4. Tighten Loose Components:

‍

Check for any loose screws or bolts around the disposal’s mounting assembly. Tighten them with a wrench or screwdriver to reduce vibration and noise.

‍

5. Avoid Hard or Stringy Foods:

‍

If the noise occurs after processing hard items, avoid disposing of foods like bones or fibrous vegetables in the future. Instead, toss them in the trash or compost.

‍

6. Replace Worn Parts:

‍

If you suspect that the noise is due to worn bearings or blades, it may be time to replace these components. For most homeowners, this is a job best left to a professional plumber.

‍

When to Call a Plumber

‍

While many garbage disposal problems can be resolved with DIY efforts, some situations require professional help. You should call a plumber if:

‍

• The disposal continues to make loud noises after you’ve checked for foreign objects.
• You suspect that the motor or internal components are damaged.
• The unit is leaking or not functioning at all.
• The noise is due to improper installation, and you’re unsure how to secure the unit.
• A plumber has the expertise and tools to diagnose and fix garbage disposal issues quickly, saving you time and frustration.

‍

Preventing Future Problems

‍

Preventative maintenance can go a long way in keeping your garbage disposal running smoothly. Here are some simple tips to extend its lifespan and minimize noise:

‍

• Use Cold Water: Always run cold water while using the disposal. Cold water helps solidify grease, making it easier for the disposal to grind.
• Avoid Overloading: Feed food scraps into the disposal gradually instead of all at once.
• Clean Regularly: Use a mixture of ice cubes and rock salt to clean the blades and eliminate buildup. You can also grind citrus peels for a fresh scent.
• Don’t Treat It Like a Trash Can: Be mindful of what you put into the disposal. Avoid non-food items, grease, bones, and stringy vegetables.

‍

Conclusion

‍

A noisy garbage disposal is more than just an annoyance—it’s often a sign of an underlying issue that needs attention. By understanding the common causes and taking the appropriate steps, you can often resolve the problem on your own. However, when in doubt, don’t hesitate to call a professional plumber to ensure the job is done safely and effectively.

Taking care of your garbage disposal not only reduces noise but also extends its lifespan, keeping your kitchen efficient and hassle-free. With regular maintenance and proper use, your disposal will continue to be a trusty companion for years to come.

‍

 Maintain Your Plumbing System

‍

Regular maintenance of your plumbing system is essential for preventing costly issues and optimizing water usage. Scheduling routine inspections can help identify potential problems early, allowing you to address them before they escalate. 24/7 Plumbing Co. team provides thorough inspections and maintenance services tailored to your needs, ensuring your plumbing system operates efficiently. This includes checking for leaks, inspecting pipes and fixtures, and ensuring everything is in good working order.

‍