E-17Solving Common ProblemsExplanation/Solution Check for a power failure. Check that the power plug is plugged in tightly. Check that the power outlet is not of a poor quality. Check that the Filter Box is closed properly.ProblemThe air cleaner does notoperate.Before contacting the after-sales service, perform the following simple checks.This may prevent you from making an unnecessary call and wasting your time and money. Check whether the Filter Box was opened during operation.Press the Power button if you wish to restart the air cleaner.The air cleaner stops itsoperation abruptly Make sure that the air cleaner is used in places that havea high level of odor permeating contaminants in the air.The air cleaner cannot fully function in an environment where thelevel of contamination is too high. Check whether the source of the unpleasant odor is the uncleanfilters in the Filter Box.Unpleasant odors can bedetected coming from the aircleaner. Check whether the air cleaner is operating in the Sleep Mode.In the Sleep Mode, the display automatically diminishes itsbrightness to ensure a comfortable sleeping setting.The Display Brightness is toodim. Check whether the lens of the Dust Sensor is unclean. Check whether the filters in the Washable and Recovery FilterSection have been cleaned and recovered regularly. Check that there are no additional contaminants entering the roomthrough open windows and doors.The air in the room still feelsunclean. Make sure that you have pressed the Filter Reset button after youhave cleaned the Washable Filter Section.The Wash Indicator stays on. Close the air flow blade by using the Power button on the controlpanel. Do not close the air flow blade with your hands.The air flow blade does not close. Check that the air cleaner is in the Auto or Sleep Mode.- In the Auto or Sleep Mode, the air cleaner automatically does notmove the air flow blade.The air flow blade does notmove.