The iRobot Roomba series has changed how we approach home cleaning by offering a simple, cutting-edge technology solution. However, even the most sophisticated devices can encounter errors from time to time, disrupting the seamless cleaning experience. One such error that Roomba users may come across is Roomba Error 15.
This error code, often accompanied by a pause in the cleaning process and an error message, indicates a problem with the robot’s internal sensors detecting an obstacle or an unstable surface.
This complete article will explore the strong matches of Roomba Error 15, look at its potential causes, and provide you a step-by-step troubleshooting method to effectively fix the issue.
What is Roomba Error 15?
Roomba Error 15 is an error code that occurs when the Roomba’s internal sensors detect an obstacle or an unstable surface. These sensors, known as cliff sensors, are designed to prevent the Roomba s , Roomba i and other Roomba vacuum cleaner from falling off stairs or edges, ensuring the safety of both the device and your home.
When the sensors misinterpret the environment or encounter an obstruction, the Roomba vacuum pauses its cleaning cycle and displays the Error 15 message.
Several factors can contribute to the occurrence of Roomba Error 15 includes:
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- The cliff sensors may become dirty or obstructed over time, hindering their ability to accurately detect the surroundings. And it may start cleaning the same area again.
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- The performance of the sensors can be hampered by the accumulation of dust, debris, pet hair, and sticker adhesive residue.
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- Changes in the cleaning environment, such as rearranged furniture or the presence of loose rugs or cords, can also confuse the sensors and trigger the error.
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- Additionally, software glitches or outdated firmware can occasionally contribute to the occurrence of Roomba Error 15.
Troubleshooting Steps to Fix Roomba Error 15:
A systematic approach that emphasizes on cleaning the sensors, improving the cleaning environment, and carrying out essential resets is needed to fix Roomba Error 15.
Clear the Error Message and Restart:
To start troubleshooting, remove your Roomba from the charging station (home base). Press and hold the “CLEAN” button for about ten seconds until you hear beeps and see the display showing “1.” Release the button, and the error message should disappear. Restart the Roomba by pressing the “CLEAN” button again.
Examine and Maintain the Sensors:

Roomba’s cliff sensors, located underneath the front bumper, play a crucial role in detecting obstacles. Dust, debris, or other obstructions on the sensors can trigger Error 15. Inspect the sensors and gently clean them using a clean, dry cloth or a can of compressed air. Ensure there are no hindrances that could interfere with their operation.
Check the Cleaning Environment:
Sometimes, changes in the cleaning area can confuse the Roomba’s sensors and lead to Error 15. Rearrange furniture, remove loose rugs or cords, and eliminate any potential obstacles that may trigger the error. Creating a clear and flat surface for the Roomba to operate on will minimize false detections.
Perform a Robot Reboot:
If the previous steps didn’t resolve the error, perform a robot reboot. Flip your Roomba upside down and locate the small circular recessed button near the main wheels. Press and hold the button for about 10 seconds until you hear a tone. Release the button, and your Roomba should restart.
Check Your Internet Connection
If performing a reboot doesn’t resolve the issue, it’s essential to assess your internet connection. If your connection is unreliable or lacks sufficient strength, it can readily trigger the Error Code 15 message.
If you encounter difficulties with other devices connected to your home network or observe that the indicator lights on your router are not functioning as expected, this strongly suggests that the connectivity is the underlying problem.
In such instances, a simple solution is often to reboot your router. You can accomplish this swiftly by unplugging the router from the wall socket for a duration of 30 seconds. This action typically helps to restore proper connectivity.
Factory Reset the Roomba:
If the error persists, performing a factory reset may help resolve the issue. Different Roomba models have varying reset methods, but a common approach is to press and hold the “CLEAN” button while simultaneously pressing and releasing the “SPOT” and “HOME” buttons. Consult your Roomba’s user manual or the iRobot website for specific instructions tailored to your model.
Update the Roomba Software:
Ensure that your Roomba is running the latest firmware by connecting it to the iRobot Home app. Updating the software can often fix bugs and glitches that may cause Error 15 or other issues. Follow the instructions within the app to check for updates and install them if available.
Perform a Deep Cleaning:

If Roomba Error 15 persists even after trying various troubleshooting steps, it may be worth performing a deep cleaning of your Roomba. Over time, dirt, debris, and hair can accumulate inside the robot, affecting its performance and triggering errors.
Consult your Roomba’s user manual for instructions on how to disassemble and clean the different components. Pay attention to the cleaning the brushes, wheels, sensors, and the dustbin. Use a soft brush or a damp cloth to remove any built-up dirt or obstructions. Once everything is cleaned and dried thoroughly, reassemble your Roomba and test it again.
Revert Roomba Smart Map:
In some cases, reverting Roomba’s smart map to a previous version can be helpful. This is because Roomba is more familiar with the older map configuration. To do this, follow these steps:
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- Open the iRobot mobile app.
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- Go to ‘History.’
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- Select ‘Clean Maps.’
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- Choose the previous map.
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- Tap the ‘overflow menu.’
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- Click ‘Update Smart Maps.’
Now, test Roomba’s performance with the old map. If it doesn’t resolve the issue, consider other troubleshooting options.
Remap Your Home
To reset your home’s map in the Roomba app, access “Smart Maps.” Locate the map thumbnails you want to delete and tap the three dots icon for each map, then select “Delete map.” After removing all undesired maps, start a new cleaning cycle to let Roomba generate a fresh Smart Map. Note that menu options may vary based on the app version and Roomba model.
Replace the Roomba Battery:

In some cases, Roomba Error 15 may be caused by a low or faulty battery. If your Roomba’s battery is old or not holding a charge properly, it can affect the overall performance and trigger errors. Consider replacing the battery with a new one that is compatible with your Roomba model. To securely remove the old battery and install the new one, follow the manufacturer’s instructions.
Preventive Maintenance:
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- Perform regular preventive maintenance to minimize Roomba Error 15 and other issues.
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- Clean brushes, filters, and the dustbin after each cleaning cycle.
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- Inspect for loose parts or signs of wear and tear.
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- Keep the charging station clean and free from debris.
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- Proper maintenance prolongs Roomba’s lifespan and ensures consistent performance.
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- Store your Roomba in a cool, dry place when not in use to prevent damage from dust and moisture.
Conclusion:
Roomba Error 15 can disrupt your cleaning routine, but by following the comprehensive troubleshooting steps outlined in this guide, you can effectively resolve the issue. From clearing the error message and cleaning the sensors to checking the cleaning environment and performing a factory reset, these steps cover a range of potential solutions.
If all else fails, contacting iRobot customer support, exploring online resources, or seeking professional servicing can provide further assistance. Remember to perform regular preventive maintenance and consider upgrading your Roomba if necessary. By addressing Roomba Error 15 promptly, you can enjoy the convenience and efficiency of your iRobot Roomba once again.