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The operating hours counter for the
grease filter is set at the factory for 30
hours. (This can be changed if re-
quired. See "Altering the grease filter
operating hours").
After this set time has elapsed the indi-
cator lamp for the grease filter touch
control glows. The grease filters must
then be cleaned.
After the grease filters have been
cleaned and put back in place, the fil-
ter operating hours counter must be re-
set.
To do this, press the grease filter
touch control and hold for about 4
seconds.
The indicator lamp will go out.
12
To check the percentage of time set al-
ready used:
Switch the fan on.
Press the grease filter touch control.
One or several of the power level touch
controls will flash.
The number of flashing lamps shows
the percentage of the operating time
which has already been used up.
1 lamp
= 25%
2 lamps = 50%
3 lamps = 75%
4 lamps = 100%
The number of operating hours used re-
mains in the memory, even when the
appliance is switched off or there is a