Why is my CleanBot stuck at the front door?
Solution 1:
I am not sure if you had already saw this forum, and are aware of it, but it seems that when cleanbots go broken, they can not go through doors any more. In that case, get your sim to fix it and should be working fine again. If it is not broken, and still does this, it could be the door itself is to blame. According to the same site, the bots are not that very good with simple, one tiles doors, double doors are recommended.