Why is there no systematic and reproducible cleaning?
Dear Electrolux staff,
I hope you are well despite the current pandemic situation.
I've been using a Purei9.2 PI92-6DGM for about 9 months now. The robot has the latest firmware, the app is the most recent version. Every once in a while I'll come home while it is cleaning my appartment, and almost every time I feel the urge to post here about its behaviour - now I finally do.
The size of my appartment, according to the app, is roughly 42m2. All rooms have laminate or tiles, there are no rugs etc. Almost all of the furniture positions etc. are static, so are the doors. Those few things (2..3 chairs) that change position between cleanings I will move to fixed locations on the morning before cleaning starts, so their position varies by less than 5cm each time. I'm working in R&D myself so I've done quite bit of testing and when I write "static", I mean static ;-)
Still, the cleaned area shown by the app will vary between 41 and 44m2. What's worse, sometimes the robot will finish cleaning within approx. 44min, sometimes it takes 52min. While the shorter times require no in-charging, the longer times do, stretching the cleaning process to a total of more than 2h.
The reason for this behaviour is obvious: The robot simply does no systematic and reproducible cleaning. Without apparent reason, it will change rooms when the current room is not finished yet, just to return to it later to clean a "missed" area of half a square meter or larger. I've just observed it again and with the 4 rooms in question, it visited each room at least twice.
As most forum members, I've reset the robot, deleted maps and let it re-scan the whole place, I've had it clean with and without WiFi enabled. I've emptied the dustbin to reduce airflow resistance, I've cleaned the camera and laser windows, I've made sure brushes and wheels are clean and move freely. The charger is in an easily accessible location and I've tried other locations before.
Now would you mind answering me that simple question: Why, in this static environment, is it impossible to have the robot do the regular cleaning in a systematic and reproducible fashion?
Looking forward to your answers.