Miele DA 5321 W Operating and Installation manual - Page 14

Operation Filter timers Grease filters A timer monitors the hours of fan operation. The indicator for the grease filter will light after 30 hours of operation. The grease filters must then be cleaned. After the grease filters have been cleaned and put back in place, the grease filter timer must be reset. Checking the filter timers ^ Press the On/Off button to turn the fan on. ^ Press and hold the grease or charcoal filter button. ^ To do this, press the grease filter button for approx. 3 seconds. The indicator will go out. Charcoal filter Recirculation mode only The timer for the charcoal filter is not preset. Please program this timer, see "Operation - Reprogramming the charcoal filter timer". The charcoal filter indicator will light once the selected time has elapsed. The charcoal filter must then be replaced and the charcoal filter timer reset. The number of flashing "-/+" indicators show the percentage of programmed hours that have been used. 1 indicator = less than 25 % 2 indicators = less than 50 % 3 indicators = less than 75 % 4 indicators = less than 100 % This information will remain stored in memory in the event of a power failure. ^ To do this, press the charcoal filter button for approx. 3 seconds. The indicator will go out. 14