[. . . ] Cleaning the hood WHEN TO CLEAN IT: clean it at least every 2 months to prevent the risk of fire. EXTERNAL CLEANING: use a cloth moistened in lukewarm water and neutral detergent (for painted hoods); use specific products for steel, copper or brass hoods. [. . . ] EXTERNAL CLEANING: use a cloth moistened in lukewarm water and neutral detergent (for painted hoods); use specific products for steel, copper or brass hoods. Metal sponges, brushes, too hard brushes, very aggressive detergents, etc. ) Cleaning the grease filters WHEN TO CLEAN IT: clean it at least every 2 months to prevent the risk of fire. HOW TO REMOVE THE FILTERS: push the catch near the handle towards the rear of the hood and pull the filter downwards HOW TO CLEAN THE FILTERS: hand wash or in the dishwasher using a neutral detergent. If washing in the dishwasher, possible discoloration of the filters does not in any way compromise their functioning. After 120 hours of motor operation, the charcoal filter alarm is activated (all the LEDs blink). The alarm is activated when the motor is off and remains displayed for 30". To deactivate the alarm, press one of the keys for 2" during alarm display. If something appears not to be working properly, do the following simple checks before calling Technical Service: · If the hood is not working: Check that: - The power has not been disconnected. If the hood performs inefficiently: Check that: - The motor speed selected is sufficient for the amount of smoke and vapours released. [. . . ] To deactivate the alarm, press one of the keys for 2" during alarm display. If something appears not to be working properly, do the following simple checks before calling Technical Service: · If the hood is not working: Check that: - The power has not been disconnected. [. . . ]