LIQUID OR Cooker Hood: Error Code F Meaning & Removal Steps - Aluminum Filter Cleaning

How to remove it and what does it mean? I was looking in the manual, I was looking on the net and I don't know.
I took out the aluminum filter and cleaned it in the dishwasher. I put it on, turned off the device earlier and the code still appears, so it's probably not all.

I am asking for advice from more experienced users.

Skryn's colleague answered my question with a bit of irritation, I looked again at the instruction enclosed with the purchase and unfortunately there is no such information there. However, using the help, I reset the error F and it's ok.

This time unfortunately the error E appeared and I also reset it. After the reset, a dot appeared in the lower right corner of the display. Not like before "0"

Is it possible to unscrew?

Added after 9 [minutes]:

skryn wrote:

Did a colleague read the operating instructions?
It seems not. What does he say?
Type F "ciarkowskie" errors are cleared with a watch (such a magic sensor) by pressing for the appropriate time.
But you already know and you will learn for the future.

PS. Next time I am asking for the exact type of device, for the future:
https://www.elektroda.pl/rtvforum/topic1668062.html

as admin, you probably have the best chance of finding an answer.

remo3 wrote:

as admin, you probably have the best chance of finding an answer.

If nothing has changed since yesterday, everyone has essentially identical access to the forum search engine, not to mention Google.
The only difference is that (unless I'm cruelly wrong) you need advice, not a screening area.