I am so glad I found this. I also got this exact same model, yesterday, and was so disappointed today when it wouldn’t run for more than 20 min, and then would just stop. Filter wasn’t full...cord not tangled...it passed the out of water test...
I was out in the rain and cold all day, getting madder by the minute. The Maytronics phone number was useless. I got a message “the person you are trying to reach has traveled out of range” or something like that...which is the strangest thing I’ve ever encountered when calling a business # and made me even more frustrated.
Anyway, I am not surprised this fixed the unit because I did notice when I was inspecting it prior to putting it in the water that the “guts” seemed a little loose in there. The tread covers were both off in the box when it arrived and it just seemed like it hadn’t been handled very carefully.
I didn’t find this video until almost dark, and so the dolphin (which we’ve named “Daryl”) finished-finally a full cycle-after dark. I don’t have lights out there yet so I don’t know how well it cleaned the pool, but the filter basket was actually FULL this time, so I’m confident I will wake up to a much cleaner pool.
Thanks again to the members of this forum. Now I don’t have to return this thing and wait another week to finish opening the pool.