iRobot Roomba Bumper Sensor repair - Schneor Design and More
Roomba j7+ I have just gotten error 30 this morning and worked fine then at 9PM it's happened 3 times and I've emptied the bin, cleaned the sensors. 90Seconds later it appeared.
Roomba Error 9 - Model 770 - YouTube
S9 and error 9 straight after unpacking it. : r/iRobot
Fixing Roomba Error 9 and Circle Dance - YouTube
How to Fix Error Code 17 on Roomba (Roomba Cannot Complete Cleaning)
How I fixed and repaired my broken Roomba with 9 Beep Error Circle Dance and IR Bump Sensor Error - YouTube