I have a Hayward Ultra that is about 3 years old.
The thing won't hardly move, and when it does it either gets stuck on the stairs or hits the waterline and hovers. This is crazy but I am sure it is something simple.
My other problem is that I pulled it out of the pool and when I set it down, one of the flaps went under the unit, and snapped off the hooks that hold the flap in place. I know I have to replace the broken part - where is a good place to buy parts for the Ultra?