10 ENFilter resetYou can replace the filter even before filter replacement alert ( ) displays on the screen�After replacing a filter, you need to reset the filter lifetime counter manually�1 Press the power button to turn on the appliance�2 Within 10 seconds after power on, press and hold the mode switch button for5 seconds to reset the filter lifetime counter�6 Storage1 Turn off the air purifier and unplug from the power socket�2 Clean the air purifier, air quality sensor and the surface of the filter (see the chapter“Cleaning”)�3 Let all parts air dry thoroughly before storing�4 Wrap the filter in air tight plastic bags�5 Store the air purifier, filter in a cool, dry location�6 Always thoroughly wash hands after handling a filter�7 TroubleshootingThis chapter summarizes the most common problems you could encounter with theappliance� If you are unable to solve the problem with the information below, contact theConsumer Care Center in your country�Problem Possible solutionThe appliancedoes not work eventhough it is pluggedin�• The filter replacement alert is on but you have not replaced thecorresponding filter� As a result, the appliance is now locked� Inthis case, replace the filter and reset the filter lifetime counter�The airflow thatcomes out of the airoutlet is significantlyweaker than before�• The surface of the filter is dirty� Clean the surface of the filter (seethe chapter “Cleaning”)�