We have had some tough luck with the S300i, specifically we are on our third robot in the last month and none of them have lasted even a day before breaking. Just received a new robot yesterday, put in the pool and everything was working great, full cycle, pool looked great. Went to start it up today and the power supply lights quickly blinked and then died. This has happened with the 2 other robots as well. Maytronics is sending out a new power supply tomorrow. It is being directly plugged into a GFCI outlet. Has anyone else had problems with the power supply and it's short lifespan? Any tips on how keep it running for more than a day?