iRobot Roomba 4210 Bagless Robotic Vacuum "going circles backwards" Questions

goes in backwards circles. Pretty much a bad component in your Roomba, makes it think that it is constantly in collision mode. This makes it go backwards in circles. I fixed mine using this repair kit

circles If you are lucky then one of the 4 sensors under the bumper has dust lint buildup. Blow out these areas and give your unit a good cleaning. If it still continues to do this then the bumper bar

...circles. when it starts doing that hit the start button again then wait a few sec. Roomba shows everything in order. But, it runs in a small circle and will not respond expand out to cover the room. ...

my roomba won't go forward it just spins in a circle and will go backwards. I have already tried cleaning it out and cleaning the front bumper sensors. You will need to take the top off to clear those

...circles for a minute or so, then the red light beeps and flashes and the vacuum shuts off. Sounds like either the battery is bad or not being charged properly with subsequent loss of programming. Hi, ...

...backwards, then a red alert lights up ststing to clean it, which a throughly good cleaning has been done, gave this as a gift to someone and they only used it for a short time before this happened, ...

...going backwards in circles for another few seconds then stops completely with red led on on status.. I had the same kind of problem with my model 400 today...after starting it and having it go in a ...

...going backwards Ours goes backwards ONLY now... was stopping and starting then dying... now it only goes backwards and rides up onto the furniture and stops. Did the fix mean sending it back and ...

going backwards and keeps on circling I have takin several Roombas apart with this problem. Basically the sensors on the bumber are blocked so the roomba thinks it is hitting something. I believe this

...going over a cliff so it backs up. I didn't have a can of compressed air, so I turned it over on the grass and went after it with a leaf blower..up close. Lots of dust came out and it has worked fine ...