Our polaris 9300 just stopped working. The lights would just flash on and off. Luckily the warranty is not up until this August. Called polaris and they gave me a service request number and said to take it to Leslie's as the labor is free. They called the other day and said the robot itself was the problem and they was going to have to wait on parts from polaris. I have never left if in the pool longer than 24 hours and always put it out of the weather when stored. Hopefully I will get a few more years out of it when it comes back. I will update the progress of the warranty process as it goes. Hoping it will not take to long.