Hello, thank you for your suggestion, on the basis of which the supplier contacted us and would like to respond below.
"Hello, if the LEDs on the vacuum cleaner nozzle stop lighting up, it is a sign for the customer that the rotary brush is so clogged e.g. with his hair all curled up, he stopped turning around. To clean the rotary brush, follow the instructions in the instructions for use, see Cleaning and maintenance. To clean the filter it is not necessary to unscrew the outer filter cover, it is sufficient to remove the inner filter from the outer cover, see picture and description in the user manual. If you have any questions, please contact our colleagues at
[email protected] and they will be happy to help you with the procedures. Regards Team Sencor"
Please do not hesitate to contact us in case of need. Thank you and have a nice day, Ondřej - Alza expert