S e i t e
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9. Maintenance
For maintenance please disconnect the unit from power to avoid an electric shock. Never clean the filters with
water to avoid changes to the shape of the filters. The pre-filter and the blue cotton filter should be cleaned
carefully with a vacuum cleaner every 4-6 months.
The sensor for air quality measurement has to be cleaned about every 3-6 weeks.
To do this, carefully remove the cover and clean the sensor with a clean water
moistened swab. Please do not use alcohol or other cleaning agents, because the
sensor otherwise would be damaged.
10. Filter Replacement / Spare Filters
The plastic pre-filter can be used permanently. If it is damaged, it must be replaced.
The average operative time of the multi-filter is 1.5 years at an average 4-hour operation per day. This extent to the
way of use and air pollution. Strong tobacco smoke for example will shorten the using time of the filter.
If the unit is not used for a long time, we recommend to take the filter out of the unit and put it inside an airtight foil.
The spare filters can be obtained from authorized dealers.
11.
Failure and Solutions
Please refer to the following before contacting Customer Service Centre for service / repair:
Unit does not work: Check if the power cord is plugged in correctly, power is available and the front panel is installed
correctly.
The Remote Control does not work: Please check whether the battery is placed correctly and has enough capacity.
Probably change the battery (size CR2032). The remote control must be directed at the unit`s front site with the IF-
Sensor.
The air leaner is noisy: Check, if the foil of the filters is still inside and remove it.
Unable to remove odors or dirt in the air. Loud operation noise level: Please make sure, that air intake and air
outlet are not blocked and clean them carefully with a vacuum cleaner. Take the filter unit out of the air cleaner and
clean the pre-filter und filter-set carefully with a vacuum cleaner or replace the filter-set by a new one.
The air quality indicator is not working or constantly shows "red": Clean the dust sensor carefully as described
before. Please note that this sensor detects only the health concern particles (PM 2.5) and therefore does not
respond to any dust. (However, this does not diminish the power of the air cleaning over the entire particle size range.)
