I got a Pool Rover Jr about four years ago, and it worked great for a while. About two years ago, it stopped changing direction. The jets and suction were working just fine, but it'd go until it hit a wall, then just kept driving itself forward. I got busy having a toddler and newborn, so I only just got around to researching and troubleshooting. Pretty sure I narrowed the problem down to the power supply. With my ear against it, I can hear it hum for ~30 seconds, then two rapid clicks, then humming again. Pretty sure the click is it changing direction, and two clicks means it's changing direction, then changing right back.
I emailed a robot repair place, and they said that if the power supply is the problem, the only option is probably replacing the power supply. Price for a new one seems to be around $200. So now I'm trying to decide between doing that and hoping it fixes it, looking for a new robot or suction cleaner, or just sucking it up and manually vacuuming.
I'd love to keep using an automatic cleaner, because I could run that a few times a week, while I'd only be able to do it myself maybe once a week. So ideally, a robot, but the most cost-effective AG robot seems to be...the Pool Rover Jr. Don't particularly love the idea of just getting another one when this one crapped out so quickly. Then again, maybe I did something wrong that made it Crud out.