Had to return it , got another one to replace it , and now this one is starting to have the same issue, and is a week past the return date! When it works it’s great! Easy to use and maintain, but when it goes bad it’s bad. The drum doesn’t go back to the original position, leaving it dangerous for the cat to enter, the dump opening on the bottom and the cat can get hurt. Have to unplug it for it to reset. Not good when you’re not home! When you interrupt the cleaning mode by walking in front of the sensor it stops, but half the time it doesn’t reset ..,so I have again having to manually reset it. This is not good when you’re away from home. Today I kept getting the alert that the been was full, I empty it twice a day! Morning and when I get home. It’s supposed to be good for a week! , SO BUYER BEWARE! $230.00 wasted.