Dolphin S400 - App always says filter is full?

[rcoburn]

I tried searching on this issue but didn't find anything that helped, so I'm making my first post. We had a pool built last year, and I bought a Dolphin S400 vacuum later in the year for vacuuming while the pool was closed. It worked well, no issues. After about 10 uses or so, the app started showing the "filter full" message within a few minutes of starting the cleaning cycle.

The other day, I soaked the larger snap-out filters in TSP solution for a few hours per another post I read, and a bunch of stuff came off which was a good sign. I also cleaned the inner filter cartridge, which looked ok, but I gave it a once-over anyway. That same day after about 20 minutes of the vacuum running, I received the message again. The pool had been manually vacuumed the week prior so there wasn't a lot going on, dirt-wise, in the pool (at least visibly). It seems to have cleaned what I could see well enough, but the warning is there for a reason so I'd like to fix it.

Below are pictures of the in-app message, as well as the filter basket after a full run. I assume "full filter" and "full basket" are different, I just wanted to give some idea as to how much 'stuff' the vacuum was dealing with.


What can I do here? Am I left having to already buy replacement parts, or is there something I'm missing?
Thanks for any help!

 

[asair]

I am having the same issue with my Dolphin S400. Bought it last year and worked great.
Started it up this year and started getting ‘Filter Full’ message after a few minutes. The Dolphin also seems to be off balance, is doing wheelies, going sideways which wasn’t happening last year.
Brought it into store where I bought it and they said Maytronics notes it was a sensor issue so he replaced the motor. However I started it up again and the ‘Filter Full’ indicator didn’t come on but the unit is still way off balance and not vacuuming like it used to.
You can see in the pictures how the unit is off balance, how dirt is left in the pool and that it didn’t vacuum up much.
Not sure what my options are now. Any help would be appreciated.
Thank you.