C2
Main brush error
warning
The main brush can't spin, almost always hair or fiber wrapped around it.
Fix: Remove the main brush and clear anything wrapped around it.
Dreame compiled
Dreame reports faults as 'C' codes with app + voice alerts rather than a printed code chart; compiled from the Dreamehome app's own alert text across D/L/X/Z series.
C3
Wheel error
warning
A drive wheel can't move, usually blocked by debris or a cable.
Fix: Turn the robot over and clear the wheel wells.
C4
Cliff / drop sensor error
info
Sensor dirty or a real ledge/stair drop detected.
Fix: Clean the underside sensors and keep away from stairs while unsupervised.
C5
Bumper / collision sensor error
info
Front bumper stuck in or sensor malfunction.
Fix: Clean around the bumper and lightly free it.
C6
Fan / suction motor error
warning
Airflow blocked or the motor is overloaded.
Fix: Clear the dustbin, filter and the air path to the motor.
C7
LDS / laser sensor error
info
The spinning LiDAR turret (on models that have one) is blocked or dirty.
Fix: Check for anything covering the turret and wipe it clean.
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