Roomba Error 15: What Does It Mean and Should I Worry?
- The robot self-detected and cleared an internal glitch (normal)
- The battery was removed and reinserted
- A software update just completed
Problem Description
Roomba announced Error 15, an internal issue the robot detected and already resolved on its own. A single Error 15 is expected after you reinsert the battery, unbox the robot, or finish a software update - it only matters if it fires on every clean.
Why This Happens in Real Homes
Error 15 is the rare Roomba error that usually means nothing is broken. iRobot describes it as an internal issue the robot detected and already fixed on its own. It shows up most often the moment you reinsert the battery, unbox a new robot, or finish a software update - all normal situations where the robot re-checks itself on startup.
Press CLEAN and run the robot; a one-time Error 15 clears and never comes back. The only version worth acting on is Error 15 that fires on every single clean and stops the robot working. That points to a loose battery, an unfinished software update, or a genuine board fault - reseat the battery, reboot, update, and if it still errors every run, contact iRobot.
Symptoms
- Roomba announces Error 15 once
- Error 15 right after reinserting the battery
- Error 15 after a software update
- Robot otherwise runs and cleans fine
- Error 15 clears after pressing CLEAN
- Error 15 after the robot was stored or shipped
- Occasional Error 15 with no other symptoms
- Error 15 on every single clean (the abnormal case)
Recognize these? Here's what usually causes it.
Common Causes
- The robot self-detected and cleared an internal glitch (normal)
- The battery was removed and reinserted
- A software update just completed
- The robot came out of long storage or shipping
- A brief power hiccup during charging
- A one-time software fault the robot recovered from
- A loose battery connection (if it repeats)
- Firmware that didn't finish installing (if it repeats)
Most fixes happen in the first 3 steps.
If Error 15 appears on every cleaning attempt and prevents the robot from running, don't keep force-restarting; factory-reset through the app, and contact iRobot if it persists.
Tools & Requirements
These are for the steps in this guide, prioritized by fit, rating, availability, and current value.
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Step-by-Step Solution
Don't Panic
A single Error 15 is one of the few Roomba errors that usually means nothing is wrong. iRobot's own documentation says the robot detected an internal issue and already resolved it. Press CLEAN and it typically clears without further action.
Check the Timing
Error 15 almost always appears right after you remove and reinsert the battery, unbox a new robot, or finish a software update. In those situations it's expected startup behavior, not a fault - the robot re-checks itself on power-up.
Press CLEAN and Retry
Press the CLEAN button once to dismiss the error, then start a normal cleaning run. If the robot cleans through without erroring again, there's nothing more to do.
Reseat the Battery
If Error 15 keeps returning, flip the robot over and remove the two screws on the yellow battery door on the underside. Lift the battery out and press it firmly back in - a loose battery contact can trigger repeat errors.
Still stuck? Ask Trunetto about this exact issue.
Reboot the Robot
Hold the CLEAN button for about 20 seconds until the light ring swirls, then release. The robot reboots and clears a software fault that's re-triggering the error.
Update the Software
Open the iRobot Home app, go to the robot's settings, and check for a software update. An interrupted or half-finished update can leave the robot throwing Error 15 until it installs completely.
Full Charge on the Dock
Set the robot on its Home Base and let it charge to full. A borderline battery state can surface transient internal errors that disappear once the battery is topped up.
When to Escalate
If Error 15 appears on every single cleaning attempt and blocks the robot from working, that's the abnormal case. Factory-reset through the iRobot app, and if it still errors on every run, contact iRobot support.
Quick Solutions
Still having issues? This is usually the deeper cause below.
If this comes back after following these steps, check whether a recent app or firmware update reset a default setting — the fix works, but the setting gets reverted silently.
Do you work with smart-home systems?
Create a Trunetto business profile, list the brands and services you support, and make it easier for customers to find your business.
List Your BusinessA one-time Error 15 after reinserting the battery is completely normal - iRobot builds this self-check into startup. Only worry if it happens on every clean.
Battery-related failures are almost always flagged too late — the device degrades silently for days before the app catches up to what's actually happening.
- The robot self-detected and cleared an internal glitch (normal)
- The battery was removed and reinserted
- A software update just completed
- The robot came out of long storage or shipping
- A brief power hiccup during charging
Before you go — try one of these (they fix most cases).
Official Manufacturer Manual
iRobot provides official product documentation through their online manual rather than downloadable PDF. Access setup guides, troubleshooting steps, and product specifications for your iRobot Roomba.
Source: irobot.com
Need More Help? iRobot Support
Note: The contact information below connects you directly to iRobot's official customer support team, not Trunetto. They can help with warranty claims, device replacements, and advanced technical issues.
How Does iRobot Compare?
Before replacing your iRobot device, see how it stacks up against alternatives in our full comparison guides.
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