Being the proud owners of 7 cats, 5 of which are Maine Coons, the Litter-Robot 3 is an essential piece of kit in our house. For the last few months it has been playing up quite a bit, regardless of how many times it had been taken apart and cleaned out. after reading through a lot of the feedback from other owners, I decided to replace this part and see if it helped. Hey presto, it is now functioning as it should be.