Goods Scene Troubleshooting
iRobot Roomba 800 Series – Bumper compressed or bumper sensor dirty — Error 9
On Roomba 800 Series, Error 9 indicates that the bumper is compressed or its sensing path is dirty.
Issue meaning
What this issue means
On Roomba 800 Series, Error 9 indicates that the bumper is compressed or its sensing path is dirty.
Start here
First checks
Tap and press the bumper to free it and clean the bumper area so that it moves and rebounds normally.
Inspection
Area to inspect
Front bumper, bumper movement and bumper sensor area.
Goods Scene guidance
What to do next
Confirm free bumper movement and remove debris before replacing bumper sensors or the bumper assembly.
Practical guidance is kept separate from manufacturer wording.