ETNA AD590RVS Mode D'emploi page 43

USE
Clean air
(In the off position) press and hold the F button for 2 seconds.
This activates the Clean air function.
The cooker hood is switched on for 10 minutes every hour. When the
extractor is working, the C and F buttons start flashing.
After 10 minutes the extractor switches off and the F button remains
on.
Changing the filters
If button A is flashing slowly, then the filters need to be cleaned. If
button A is flashing rapidly, then the carbon filters need to be changed.
Reset the controls after changing or cleaning the filters.
Press and hold light button A for 5 seconds.
Button A will stop flashing.
EN 7