ROBOROCK·FAULT ERR 15 WARN
Roborock Error 15 — Wall sensor dirty
Severity: Warning — robot pauses; it can't judge wall distance through the dust S6S7
DIRECT ANSWER
Error 15 means the wall sensor is blocked by dust. That's the small sensor on the robot's right side that keeps it a steady distance from walls while edge-cleaning. One wipe usually fixes it.
#meaning · #causes · #fix — link straight to any section
COMMON CAUSES · RANKED
1
Dust film on the sensor window MOST COMMON
Edge cleaning drags the sensor along the dustiest strip of the room, so it fogs up faster than any other sensor.
2
Smudge from a wet or waxed surface UNCOMMON
Mopping residue or polish splashed on the sensor window scatters the infrared beam.
HOW TO FIX IT
No battery or electrical work involved in this fix.
Find the wall sensor
It's the small window on the right-hand side of the robot body.
Wipe it clean
Use a soft dry cloth. No cleaners, no water — just wipe until the window is clear.
Restart the clean
If the error returns with a clean sensor, note it alongside erratic wall-following and contact support.
Did this fix your robot? No reports yet for this fix — be the first.
RELATED FIRMWARE
S7 series (S7, S7 MaxV)
SAMPLE DATA — dataset in progress4.1.2_07984.1.5_11964.3.5_16124.5.3_5936
Firmware timelines are rebuilt monthly from release notes. Versions marked as sample data are community-reported and not yet verified. Full firmware timeline →
Sources
Corrections
Spotted an error? Report a correction — fixes ship within 48h and are logged on this page.