Goods Scene Troubleshooting
Dreame H12 Dual – Roller brush does not turn
The roller brush is not rotating during operation.
Issue meaning
What this issue means
The roller brush is not rotating during operation.
Start here
First checks
Remove the roller brush and restart the machine to observe the drive shaft. If the shaft rotates but the brush does not, Dreame recommends trying a replacement roller brush.
Inspection
Area to inspect
Roller brush and roller drive shaft.
Goods Scene guidance
What to do next
Use the shaft test to distinguish a worn or damaged roller from a deeper drive fault. If the shaft itself does not rotate, service-level diagnosis is appropriate.
Practical guidance is kept separate from manufacturer wording.