This robot stopped climbing the walls. It will move around the bottom erratically. As I look at it, it seems as though it's not "sticking" to the wall. It attempts to go up but begins to float away from the wall, like there isn't enough water jet pressure to keep it stuck to the wall.
Sometimes as it's moving along the bottom, the handle will appear to "pop up" and it will stop for a second and then keep going; sometimes it'll change directions. I tried putting a float on the handle and did not see a difference.
Anybody seen anything like that?
Belts were replaced.
I do have a ton of kinks in the power wire - but I don't think that's keeping it from climbing.