nautilus cc plus

It is clean as clean can be. When starting up the impeller at the top puts out a gush of water then nothing, everything shuts down. I can turn the tracks they arent jammed, the impeller on top turns freely. The unit is a year old. Any suggestions on what the issue might be?

Good morning! Just hoping for some opinions from people that know more about this stuff than I do. I currently have a horrible SmartPool Climber that my pool installer included with my build 5 years ago. It's just terrible. I opened the pool on Sunday and on an impulse bought a Dolphin...