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Resetting the
operating hours
counter for the
HEPA filter
The maximum permissible number of operating hours is pre-set in the
controls for all filters. After a filter has been changed the operating
hours counter must be reset.
Open the menu as follows:
button
Settings
Filter maintenance
HEPA filter
Filter life remaining
55 h
The remaining operating hours for this filter type are shown on the
display.
Confirm the message with OK.
Then you will be asked if you wish to reset the operating hours
counter.
The operating hours counter must only be reset when the filter
has been changed.
Reset
Yes
No
Yes
–
The operating hours counter will be reset for the new filter.
No
–
The counter will not be reset.
Select an option using the and arrow buttons.
Confirm your selection with OK.
Maintenance
113
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