How to Fix a garbage disposal smoking: Quick Fix Solution

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Written by: Mohammad Sameer

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Have you ever been startled by smoke billowing out from beneath your sink, the unmistakable odour of burning wafting through your kitchen? If so, you’re not alone.

Many of us have faced the alarming scenario where our trusted garbage disposal begins to malfunction, transforming from a kitchen convenience into a potential safety hazard.

Today, I want to dive deep into why this happens, how you can troubleshoot and repair your disposal, and the maintenance steps you can take to prevent it from happening again.

Why Does My Garbage Disposal Have a Burning Smell?

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A burning smell from your garbage disposal typically signals an electrical issue or a burnt-out motor. Ignoring it can lead to bigger problems. A jammed piece of cutlery overheated the motor in my case.

Immediately turn off the power, clear any blockages, and restart the unit. If the burning persists, call a professional for repair help.

Why Is My Garbage Disposal Smoking and Not Turning On?

A smoking, non-starting garbage disposal likely has a failing or burnt-out motor or a dangerous short circuit. Smoke signals immediate electrical issues requiring an electrician’s expertise.

A fried circuit can be fixed, but a fried motor cannot and will need a full replacement. Do not attempt a DIY fix, as this could worsen issues or pose safety risks.

Can a Garbage Disposal Burn Out or Overheat?

Yes, garbage disposals can overheat and burn out. Signs of an overheating unit include randomly shutting off, internal breaker resetting, humming without grinding, and a burnt smell.

Overheating is usually caused by constant use, internal damage, or excessive strain on the motor.

If your disposal overheats, press the reset button and check if the breaker has tripped. Give it 10 minutes to cool off before trying again.

If issues persist, the motor may be burnt out, posing a safety hazard. Consulting an electrician is recommended. Most disposal motors last around 10 years before needing replacement.

What Causes Garbage Disposal to Smoke?

Smoking in a garbage disposal is a clear sign of a problem that needs immediate attention. The causes range from electrical issues to motor burnout, and even the presence of foreign objects.

Electrical Issues and Motor Burnout

At the heart of many smoking disposals is an electrical issue. This could be as simple as burned wires within the unit or as complex as a burnt-out motor.

Both scenarios are serious. A burnt-out motor typically occurs when the disposal is overworked or overheated.

I recall a situation where a neighbor’s disposal started smoking after they attempted to grind up particularly tough food waste. The motor just couldn’t handle it and eventually gave out. This incident underscores the importance of knowing your disposal’s limitations.

Foreign Objects

Another common culprit is foreign objects. Just about anything that shouldn’t be in a garbage disposal, from silverware to plastic utensils, can cause it to smoke.

These items can become lodged in the disposal blades, causing the motor to overheat as it struggles to spin.

Clearing these objects involves shutting off the power to the unit, manually removing the debris, and then resetting the disposal.

The Dangers of a Smoking Garbage Disposal

The risks associated with a smoking garbage disposal extend far beyond a simple appliance malfunction.

Potential Fire Hazards

First and foremost, there’s the fire hazard. Electrical components that overheat can ignite, posing a significant risk not just to the disposal itself but to your entire home.

In one instance, a friend’s disposal began smoking due to overheated wiring. Fortunately, they cut the power in time, averting a potential disaster.

Health Concerns from Smoke Inhalation

Smoke inhalation is another serious concern. The smoke emitted from a malfunctioning garbage disposal is often toxic, containing burnt plastics or chemicals from damaged wiring and insulation.

Inhaling these fumes can have health implications, especially for those with respiratory issues.

How to Safely Stop a Garbage Disposal from Smoking?

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Discovering your garbage disposal emitting smoke can be alarming. Here’s a step-by-step guide on how to safely address this issue, ensuring your kitchen remains a safe environment.

1. Turn Off the Power

The first step is to immediately turn off the power to your garbage disposal at the circuit breaker. This is crucial to prevent any electrical hazards or further damage to the unit.

Remember, safety first; never attempt to investigate or fix the disposal while it’s powered on.

2. Identify the Source of Smoke

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Once the power is off, try to identify the source of the smoke. Look for visible signs of overheating, such as burnt wires or burnt insulation.

Sometimes, the smoke can be due to something as simple as a clogged pipe or a foreign object that’s become lodged in the disposal unit.

3. Remove any Obstacles

If you spot any obstacles or foreign objects, carefully remove them. Use tools like pliers or a disposal wrench (never your hands) to remove the obstruction. This might require some effort, but it’s often the key to resolving the issue.

If your disposal comes with a hex wrench, use it to manually turn the disposal blades from the bottom, which can help free up any jams.

4. Check for Overheating

If there’s no obvious blockage causing the smoke, your disposal might have overheated. Overheating can occur if the disposal has been running for too long or is struggling with a tough clog.

Let the unit cool down for a few hours before attempting to reset it. Most disposals have a reset button usually located at the bottom; press this button once the unit has cooled down.

5. Clean the Disposal

clean your disposal to remove any lingering odours or residue that could cause future problems. Flush it with cold water and consider using a mixture of vinegar and baking soda to clean the grinding chamber.

This not only helps in clearing out any potential blockages but also neutralizes unpleasant odours.

How to Prevent a Garbage Disposal from Smoking?

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Preventing your garbage disposal from turning into a smoking hazard isn’t just about avoiding a malfunction; it’s about ensuring the safety and longevity of one of your kitchen’s most hardworking appliances.

Here are four key steps to keep your disposal running smoothly without a hitch.

1. Avoid Putting Non-Food Items in the Disposal

The quickest way to a smoking garbage disposal is through clogging it with non-food items.

Disposal blades are designed to handle biodegradable kitchen waste, not hard plastics or metal.

An unforgettable experience of mine involved a small metal spoon accidentally slipping into the disposal. The immediate jam and subsequent burning smell were clear indicators of a disaster in the making.

  • Keep a checklist near the sink of what should never go down your disposal, including non-food items and hard food items like bones or corn husks.
  • Educate everyone in your household about these guidelines to prevent accidental clogs.

2. Run Water Before and After Use

Running cold water through your disposal helps lubricate the blades and ensures smoother operation. It’s a simple yet effective way to minimize friction and prevent overheating.

  • Always turn on the cold water before you switch on the disposal and let it run for a few seconds after turning off the disposal to flush out any remaining debris.

3. Don’t Overload the Disposal

Overloading your disposal is a surefire way to overheat its motor. Chopping up waste into smaller pieces and feeding it gradually allows the disposal to work efficiently without strain.

  • Practice patience by introducing waste slowly and in small amounts, ensuring each batch is thoroughly ground before adding more.

4. Regularly Clean and Maintain the Disposal

Regular maintenance can significantly extend the life of your garbage disposal, preventing odours and smoke. Simple steps like cleaning with ice cubes and salt or baking soda and vinegar can keep it running like new.

  • Schedule a monthly cleaning routine using natural cleaners to remove build-up and keep the disposal blades sharp.

Sources and references

I found several resources that provide detailed information on how to troubleshoot and repair a smoking garbage disposal. Here are some of the key sources:

Upgraded Home offers a guide titled “Smoke Coming From A Garbage Disposal? (Here’s Why & A Fix)” which includes steps to fix a smoking garbage disposal. You can read more about it here.

The Spruce provides an article “Garbage Disposal Not Working: 6 Problems & Solutions” that covers common issues and solutions for garbage disposal repairs. Find more information here.

DisposalQA discusses “Garbage Disposal Smoking (Here’s Why & A Fix)” which includes common reasons for garbage disposal smoking and how to address them. More details can be found here.

HowToFixIt has an article “Why Is Garbage Disposal Smoking?” that focuses on troubleshooting a smoking garbage disposal, including checking the power supply and other potential issues. Learn more here.

Kitchen Entry talks about “Garbage Disposal Smoking – Here’s Why and How to Fix!” which includes potential causes like leaks or faulty seals and how to fix them. Read further here.

Trash Rite provides “Smoking Garbage Disposal: Causes, Dangers, and Troubleshooting Tips” for a comprehensive guide on addressing this issue safely. More information is available here.

Mr. Garbage Disposal offers advice on “How to Repair Your Garbage Disposal If Smoking?” including tips like running cold water through the disposal to cool it down. Further details can be found here.

Plumb Joe discusses “Smoke Coming From Garbage Disposal? (Do This!)” covering why your garbage disposal might be smoking and how to prevent damage. Learn more here.

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About Mohammad Sameer

My name is Mohammad Sameer, the founder of SoundproofGears. My hypersensitive hearing turned me into a lifelong seeker of silence. After years of research, I've become an expert on soundproofing techniques and materials. In November 2022 I launched this site to share my knowledge and help others find acoustic sanctuary. About More