On dolphin/ maytronics m600 ..Not sure if anyone else is run into this, but after about 10-20 minutes or so on a cycle, the filter full indicator goes red on the app. I have cleaned the filters and also cleaned out the impeller. It’s only a year old so unless there’s any ideas for or something else to clean, I will bring it in for service. I really don’t want to go without it for a long period of time