Yet another problem you may encounter with your robot vacuum is when it randomly will not stop turning around when it is not supposed to. Typically, they have a methodical and consistent approach to cleaning due to their integrated technology and sensors but this can happen from time to time. If you notice this occurrence, it is time to perform some basic troubleshooting. First off, take a peek at the anti-drop sensor (which will probably be located on the base of the machine) and clean it to remove any potential debris causing interference.
Also, ensure that there is no dirt or debris on the wheel or wheels. This could cause the vacuum to act sporadically and not clean properly. Of course, it could be as simple as your carpets and flooring being too dark as remember, some models will not operate well with this type of a surface.