Irobot Roomba Err 5: Understanding The Error Code


The iRobot Roomba is a popular robotic vacuum cleaner that boasts of advanced features and technology. It can clean your floors with ease and save you time and effort. However, like any other electronic device, the Roomba can experience errors and malfunctions. One of the most common error codes that Roomba owners encounter is the Err 5 code. In this article, we will discuss what the Err 5 code means, its possible causes, and how to troubleshoot it.

What is Err 5?

The Err 5 code is an indication that your Roomba’s brushes are not working properly. Specifically, the code means that the Roomba’s side brush is not able to turn. The Roomba has two brushes – the main brush and the side brush. The side brush is responsible for cleaning edges and corners that the main brush cannot reach. When the side brush is not working, your Roomba’s cleaning performance may be affected.

Possible Causes of Err 5

There are several reasons why your Roomba may be showing the Err 5 code:

  • The side brush is clogged with debris, such as hair or dust
  • The side brush motor is damaged or malfunctioning
  • The side brush module is not properly connected to the Roomba

Troubleshooting Err 5

Step 1: Clean the Side Brush

The first thing you should do when you encounter the Err 5 code is to check the side brush. Make sure it is not clogged with debris. Use a pair of scissors or a brush to remove any hair or dust that may be stuck on the brush. Once you have cleaned the brush, try running the Roomba again to see if the code has disappeared.

Step 2: Check the Side Brush Motor

If cleaning the side brush did not solve the problem, the next step is to check the side brush motor. To do this, remove the side brush module from the Roomba and inspect it for any signs of damage or wear. If you notice any damage, you may need to replace the side brush motor. Alternatively, you can contact iRobot’s customer support for assistance.

Step 3: Reconnect the Side Brush Module

If cleaning the side brush and checking the motor did not work, the problem may be with the connection between the Roomba and the side brush module. To fix this, remove the module from the Roomba and reattach it firmly. Make sure that the module is properly aligned and connected. Then, test the Roomba again to see if the code has disappeared.


The Err 5 code on your iRobot Roomba can be frustrating, but it is a common problem that can be fixed with a few simple steps. By cleaning the side brush, checking the motor, and reconnecting the module, you can troubleshoot the error and get your Roomba back to its cleaning duties. If these steps do not work, consider contacting iRobot’s customer support for further assistance.

Additional Tips

Here are some additional tips to keep your Roomba running smoothly:

  • Regularly clean the brushes and filters to prevent clogs and maintain performance
  • Check for software updates and install them to ensure that your Roomba is running on the latest firmware
  • Store your Roomba in a dry and cool place to prevent damage
  • If you have pets, consider using a Roomba that is specifically designed for pet hair to ensure optimal cleaning performance