Roborock S4 CE - Manual (Page 26)

Troubleshooting
If an error occurs during cleanup, the power indicator will flash red quickly, and a voice alert will play. Refer to the table below for resolution options.
Errors Troubleshooting
Error 1: Rotate the laser head to check that it turns freely.
The LDS unit is jammed. Remove any items blocking it then move the robot to a new
location and restart.
Error 2: Clean and lightly tap the bumper.
The bumper is stuck. Tap the bumper repeatedly to dislodge any jammed items. If
nothing falls out, move the robot to a new location and restart.
Error 3: Move the robot to a new location and restart. A wheel is suspended. Move the robot to a new location and restart.
Error 4: Wipe the cli ff sensors, move the robot away from
raised edges, and restart.
The robot is suspended. Move it to a new location and restart. If the problem persists,
clean the cli ff sensors.
Error 5: Remove the main brush and clean the brush
and bearing.
The main brush may be tangled up. Remove and clean both it and its bearings.
Error 6: Remove and clean the side brush. The side brush may be tangled up. Remove and clean it.
Error 7: Look for anything stuck in the driving wheels
then move the robot to a new location and restart.
The driving wheels may be jammed. Remove and clean them.
Error 8: Clear away any obstacles around the robot. The robot may be stuck. Clear any obstacles from around it.
Error 9: Install the dustbin and filter.
Reinstall the dustbin and filter and check that they are installed properly. If the
problem persists, try replacing the filter.
Error 10: Filter is either wet or blocked.
The filter is not completely dry. Dry the filter for at least 24 hours. The filter may also
require cleaning. If the problem persists, replace the filter.
Error 11: High-intensity magnetic field detected. Move
the robot away from barrier tape and restart.
The robot is too close to barrier tape and cannot start. Move it to a new location
and restart.
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