Error 9 means the Roomba i Series bumper is stuck and is not moving freely.
Briskly tap the bumper several times to dislodge any debris that may be trapped underneath, and then press CLEAN to restart.
It is also possible during cleaning the bumper became dislodged from the robot, please go to dislodged bumper to properly align the bumper into the robot.
If the message persists, please contact iRobot Customer Care.
