If you’re into repairing your own iRobot Roomba rather than sending it in for repairs, as always, RobotShop can help.
If you’re experiencing the nine-beep error, and cleaning the Roomba hasn’t helped, usually a defective bumper sensor is the cause. We now have online the IR bumper sensor replacement boards with instructions, complete with pictures.
All you need are hand tools, a soldering iron, and a little know-how.