Electrolux DD 8890 - Manual (Page 7)

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Control device for grease and charcoal filters
This hood is fitted with a device that signals when it is necessary to
clean the grease filter or the charcoal filter (if the hood is used in the
recircula
tion version with a charcoal filter).
On delivery, the hood is not supplied with a charcoal filter, so the
saturation indicator will be disabled.
If the hood is to be used with a charcoal filter, the saturation
indicator light must be enabled as follows:
Press buttons 4 and 5 simultaneously and hold them for 3 seconds.
At first only the grease filter LED F will illuminate, but when the
charcoal filter LED C illuminates the saturation indicator will be
enabled.
To disable it: Press buttons 4 and 5 again simultaneously and hold
them for 3 seconds, until the charcoal filter LED C goes out.
Grease filter LED (F)
LED F will start to flash when it is time to clean the grease filter.
Cleaning will be necessary after 40 working hours. Always comply
with the maintenance instructions for the grease filter.
Charcoal filter LED (C)
The charcoal filter LED C will start to flash when the charcoal filter
needs to be replaced.
This operation is necessary after approximately 160 working hours.
Resetting the saturation indicator
After cleaning or replacing the filters, press button 1 for 3 seconds until
the grease filter LED F or the charcoal filter LED C stops flashing.
Warning! The resetting of the saturation indicator MUST be done in
stand-by, never disconnect the hood from the mains.