Miele 279-4 EXT Manuel d'utilisation et d'installation - Page 18
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Operation
Filter operating hours counter
The number of hours the appliance has
been in operation is stored in memory.
The operating hours counter tells you
when the grease filters or charcoal filter
need to be cleaned or replaced.
Resetting the operating hours
counter for the grease filters
After 30 hours of operation (or another
time if the operating hours counter has
been altered), the grease filter indicator
lamp will light up. The grease filters
must then be cleaned.
Afterwards, the filter operating hours
counter must be reset.
^ To do this, press and hold the grease
filter touch control in for
approximately 3 seconds while the
fan is switched on.
The indicator lamp for the touch control
will go out.
18
Reading the operating hours counter
for the grease filters
To check the percentage of time set
already used:
^ Press the On/Off touch control to
switch the fan on.
^ Press and hold the grease filter touch
control.
One or more of the indicator lamps for
the – / + 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
remains in the memory, even when the
appliance is switched off or there is a
power cut.