ROBOROCK·FAULT ERR 16 WARN

Roborock Error 16 — Robot tilted

Q: Roborock Error 16 — Robot tilted

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.

Severity: Warning — robot won't start on a slope — it needs level ground S5S6S7S8Q

Last verified: 2026-07-05 Tools: none Time: ~2 min Difficulty: easy

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 · #models — link straight to any section

COMMON CAUSES · RANKED

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.

Robot moved while starting up

Picking the robot up or nudging it during startup confuses the gyroscope calibration.

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.

Did this fix your robot?

No reports yet for this fix — be the first.

RELATED FIRMWARE

S5 series (S5)

SAMPLE DATA — dataset in progress

3.3.9_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 →

MODELS AFFECTED

Model	Status	Firmware	Parts	Verified
Roborock S5	limited	s5	Parts →	2026-07-05 · Source
Roborock S6	limited	s6	Parts →	2026-07-05 · Source
Roborock S7	active	s7	Parts →	2026-07-05 · Source
Roborock S8	active	s8	Parts →	2026-07-05 · Source
Roborock Q5 / Q7	active	q	Parts →	2026-07-05 · Source

Models resolved from the series chips above. Support status comes from our EOL library; rows link to the matching parts and firmware pages.

Sources

Verification

OFFICIAL SOURCE

Last verified: 2026-07-05 · How we verify a fault code

Corrections

Spotted an error? Report a correction — fixes ship within 48h and are logged on this page.