ROBOROCK·FAULT ERR 16 WARN
Roborock Error 16 — Robot tilted
Severity: Warning — robot won't start on a slope — it needs level ground S5S6S7S8Q
DIRECT ANSWER
Error 16 means the robot's gyroscope says it is tilted. It started on a slope, a pile of clutter, or with one wheel on a toy. Place it on flat, level ground and restart.
#meaning · #causes · #fix — link straight to any section
COMMON CAUSES · RANKED
1
Started on an uneven surface MOST COMMON
A doormat edge, a ramp or a pile of laundry under one wheel is enough to fail the level check.
2
Robot moved while starting up
Picking the robot up or nudging it during startup confuses the gyroscope calibration.
3
Gyroscope fault RARE
Repeated tilt errors on visibly flat floor point to the inertial sensor itself. A system reset is worth one try before service.
HOW TO FIX IT
No battery or electrical work involved in this fix.
Move to flat ground
Set the robot on hard, level floor away from mats and ramps.
Restart the clean
Start it again without touching the robot while it boots.
Reset if it persists
Press the reset button. If flat-floor tilt errors continue, contact support.
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RELATED FIRMWARE
S5 series (S5)
SAMPLE DATA — dataset in progress3.3.9_0017683.5.4_0019103.5.7_0020083.5.8_0020203.5.8_002034
Firmware timelines are rebuilt monthly from release notes. Versions marked as sample data are community-reported and not yet verified. Full firmware timeline →
Corrections
Spotted an error? Report a correction — fixes ship within 48h and are logged on this page.