Why Shark Robot Vacuum Side Brushes Falling Off

The side brushes on your Shark robot vacuum ensure your home is clean and efficient. These small side spin brushes clean places the main brush might miss. Their job is to move dirt and dust from the sides, corners, and along the walls into the vacuum’s cleaning path. Plus, these side brushes are an essential part of your Shark robot vacuum and need to stay in place while the vacuum is going for it to clean well.

However, this part can fall off over time due to specific reasons. But do not panic; you will get the solution from today’s post. We will also provide some special tips so you can keep the side brushes in good condition in the future. 

So, let’s start!

First, you will know about some specific problems caused by falling side brushes.

5 Reasons Shark Robot Vacuum Side Brushes Fall Off?

5 Reasons Shark Robot Vacuum Side Brushes Fall Off

Below, we discussed five reasons why the Shark vacuum side brush fell off.

Not properly attached

The side brushes are more likely to fall off during use if they are not firmly connected when put in place or if they become loose.

Worn or damaged

If you use the robot vacuum often or on rough areas, the side brushes wear out and come loose over time. The side brushes can also get broken if they hit something, get caught on cords or ends, or are exposed to very high or very low temperatures. Wear and tear on the side brushes makes them less likely to stay in place and increases the chance that they will fall off.

Hitting an obstacle

If the robot vacuum hits an obstacle, such as furniture or a wall, the side brushes can be knocked loose or damaged. This can cause the side brushes to fall off during the next cleaning cycle.

Broken or faulty side brush holder

The robot cleaner has a part called the side brush holder that keeps the side brushes in place. If the side brush holder is broken or faulty, the side brushes cannot stay in place properly.

Defective side brushes

It is also possible that the side brushes themselves are defective. This is a less common reason. But it is something to consider if you have tried all the other troubleshooting steps above. 

Now you know the main reasons why Shark robot vacuum side brushes fall off.

Related post: Why Is My Shark Robot Side Brush Not Spinning

So, you should know how to prevent the Shark vacuum side brush from falling off.

How To Prevent Shark Robot Vacuum Side Brushes From Falling Off – (4 Ways)

Follow the 4 solutions below on how to prevent the Shark Robot Vacuum Side Brush from falling off.

4 Ways Prevent Shark Robot Vacuum Side Brushes From Falling Off

Inspect The Side Brushes Regularly

To make it easier, brush the sides of your Shark Robot Vacuum every 2 to 4 weeks. And if your vacuum gets a lot of use or you have pets, check them every 1 to 2 weeks for the best results. Remember to check that your robot vacuum is working well regularly.

Here’s what you can look for:

  • Check that the brushes are attached adequately by giving them a gentle tug to ensure they’re securely in place.
  • Look for signs of wear and tear, such as fraying, cracking, or damage. Pay special attention to the areas where the side brushes attach to the robot vacuum.
  • Verify that the attachment mechanisms or holders are not damaged or loose. If you notice any issues, consider replacing them with new, functional parts. You can purchase replacement side brushes from Shark or a third-party retailer. Do you know how to replace? Please visit here for in details: How To Replace Shark AI Robot Vacuum Side Brushes – At Home

Clean the side brushes 

The side brushes can accumulate dust, hair, and debris during vacuuming. This buildup can hinder their rotation and attachment. So clean them every 1 to 2 weeks.

Keep Your Floors Clear

The side brushes can lose their grip on things if caught in them. 

  • Before you turn on the robot vacuum, pick up toys, small items, cords, or other things that could get in the way.
  • If there are any open rugs, mats, or floor covers that could get in the way of the brushes’ movement, they should be moved or secured.

Run Your Shark Robot Vacuum Regularly

Regularly using your Shark robot (Roomba) vacuum can help maintain the brushes’ effectiveness.

Here’s why regular use is necessary:

  • Regular vacuuming prevents the accumulation of debris that can lead to brush clogs or obstructions.
  • Frequent use also lets you promptly detect and address any issues with the brushes.
  • You can also schedule your robot vacuum to run at specific times of the day, such as when you are away from home.

By taking these steps, you can make it less likely that the side brushes on your Shark robot will fall off.

Read more: Shark Robot Vacuum Max Light Flashing Blue – Fix With 7 Method

After that, you will know how to fix a Shark robot vacuum side brush that falls

How to troubleshoot a falling Shark robot vacuum side brush

Below are some steps on how to troubleshoot Shark Robot Vacuum Side Brush

Turn off the Robot Vacuum 

Ensure the robot vacuum is powered off and disconnected from the charging station. 

Remove the Side Brushes 

Gently remove the side brushes from the vacuum. The method of removal may vary depending on the specific model. Most Shark robot vacuum side brushes can be removed by simply pulling on them.

Inspect the Side Brushes

Examine the side brushes carefully for any visible issues. Check for signs of damage, like:

  • Fraying, 
  • Cracking,  
  • Wear, or 
  • Excessive debris 

 Hair, dust, and other debris can build up on the side brushes and cause them to fall off. 

Clean the side brushes

If there is debris or tangles on the side brushes, use a brush or below tools to clean them carefully;

  • Compressed Air
  • Cleaning Tool
  • Tweezers

To clean the side brushes, wipe them down with a damp cloth. Be sure to let the side brushes dry completely before reinstalling them.

Read more for cleaning filters: How to Clean Shark Robot Vacuum Filter – All in One

Reattach the Side Brushes

Once the side brushes are clean and in good shape, put them back on the vacuum firmly. Ensure the side brushes are in and snapped into place.

Turn On the Robot Vacuum

Turn on the robot vacuum and watch how it works. Ensure that the side brushes rotate properly and remain in place as the vacuum moves. You can run the program for a short time to make sure the problem is fixed.

Finally, you can fix a Shark robot vacuum side brush that falls

Related post: Why Is My Shark Robot Vacuum Not Emptying?

So after that, you will know some common questions and answers.

FAQs on Shark Robot Vacuum Side Brushes Falling Off 

What’s the best way to clean the side brushes and their connectors?

Use a small brush or tool to remove debris and dirt from the side brushes and connectors. Be gentle to avoid damaging any parts.

Is it possible to prevent side brushes from falling off completely?

Although occasional isolation may occur, following proper maintenance and installation procedures significantly reduces the chance of side brushes falling off.

What if my Shark robot vacuum continues to lose side brushes despite all efforts?

If the problem doesn’t disappear, you should either call Shark’s customer service or get professional help for a full review and possible fixes.

Read more: The Mystery of the Shark Robot Vacuum Light Blinking

Finally, we are going to the conclusion.


We’ve looked into the most common reasons why Shark robot side brushes fall off and give you useful tips on how to stop and fix the problem. To keep your Shark robot vacuum working at its best, you must do regular maintenance, ensure it’s set up correctly, and be careful. If you care about these issues, you won’t have to worry about side brushes falling off when you clean your house.

Make sure your Shark robot vacuum works perfectly, and you won’t have to worry about the side brushes coming off while it’s running.

Ethan Mitchell
Ethan Mitchell

Hello, I'm Ethan Mitchell. I studied Geography and Environmental Management at the University of Florida. I want to share with you the light of my learning and the beautiful benefits of research. When it comes to cleanliness, the home comes first, so I started my journey out of a personal interest in keeping a house clean.

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