● Checked Nov 3, 2026From Roborock support
Roborock error15
Roborock Error 15: Wall sensor dirty, and the fix
Steps2
ToolsNone
PartsNone
Works for Roborock robot vacuums (S, Q, Saros and Qrevo series).
Short answerRed light. The power light flashes red and the robot speaks the error.
What it means: The wall sensor is dirty, so the robot cannot sense walls properly.
Quick fix: Clean the wall sensor.
Fix it in 2 steps
- Clean the wall sensor.Done?
- Restart the clean.Did it work?
Fixed when: The robot cleans along walls without the alert.
Great, it is fixed. Bookmark this page in case it comes back.
Still showing Wall sensor dirty?
The error comes back after you follow these steps. Contact Roborock support with your model, serial number and the error number. Contact Roborock support at 1 855 960 4321 (24/7 (US)). Roborock support →
Parts that fix this
Refill kit (brushes and filters)For Roborock on AmazonCheck price →Check the part fits your model. Affiliate links: we may earn a commission at no cost to you.
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