9Cleaning the Grille, Case and Remote ControllerThinnerA cloth dampened with cold water may be usedon the indoor unit if it is very dirty. Then wipe itwith a dry cloth.Do not use a chemically treated cloth or duster toclean the unit.Do not use benzine, thinner, polishing powder, orsimilar solvents for cleaning. These may causethe plastic surface to crack or deform.Never use water hotter than 40 C to clean the frontpanel, it could cause deformation of discoloration.CAUTIONSNoHouseholdDrainCleanerCARE AND MAINTENANCECare and maintenanceTurn the system off before cleaning. To clean, wipe witha soft, dry cloth. Do not use bleach or abrasives.NOTE: Supply power must be disconnectd beforecleaning the indoor unit.Filter HandleCleaning the air filterA clogged air filter reduces the cooling efficiency ofthis unit. The filter should be cleaned every 2 weeks.1. Lift the indoor unit panel up to an angle until itstops with a clicking sound.2. Take hold of the handle of the air filter and lift itup slightly to take it out from the filter holder,then pull it downwards.3. Remove the Active Carbon & Dust Filter from theindoor unit.Clean the it once every two weeks.Clean the it with a vacuum cleaner or water,then air dry and replace.