Xiaomi S12, User Manual, Page: 14 / 444

13
Issues Possible Causes and Solutions
The robot vacuum no
longer cleans efficiently,
or leaves dust behind.
The 2-in-1 dust compartment with water
tank is full. Please clean it.
The filter is blocked, please clean the filter.
A foreign object has been caught in the
brush. Please clean the brush.
Error Messages Possible Causes and Solutions
Please make sure the laser
distance sensor is not
blocked before starting.
Please wipe the cliff
sensor clean and move the
robot vacuum to a new
location to start.
Clear any foreign objects which may
block or obstruct the laser distance
sensor. If the problem still exists, move
the robot vacuum to a new place and
restart it.
Part of the robot vacuum may be off the
ground. Re-position the robot vacuum
and restart it. This error may also occur
if the cliff sensor is dirty. Wipe off the
dirt from the cliff sensor.
Please clear any foreign
objects from the collision
sensor.
The collision sensor may be stuck.
Gently tap it several times to remove
any foreign objects. If nothing falls out,
move the robot vacuum to a different
place and restart it.
The robot vacuum may be caught or stuck.
Clear away any obstructions around it.
Please help remove the
obstacles around the robot
vacuum and try again.
Error Messages Possible Causes and Solutions
Please move the robot
vacuum to a level
surface to start.
The robot vacuum is tilted at startup.
Move the robot vacuum to a horizontally
level surface and restart it. You can also
reset the level of robot vacuum in the Mi
Home/Xiaomi Home app, and then
restart it.
Make sure the 2-in-1 dust compartment
with water tank is securely installed.
Please make sure the 2-in-1
dust compartment with
water tank is installed.
Make sure the mop pad holder and mop
pad are securely installed.
The robot vacuum cannot return to the
dock to charge. Place the robot vacuum
onto the charging dock and check
whether the charging dock is connected
to power.
Please make sure the mop
pad is installed.
Please return the robot
vacuum to the dock to
charge.
When the robot vacuum encounters a problem, it may play a voice
prompt. Please refer to the information below to resolve the
corresponding issue.
Troubleshooting