10Cleaning instructionsTo ensure optimal performance of the unit,cleaning has to be carried out at regular intervals.Dirty unit may cause malfunction and you maysee error code “H99”. Please consult authoriseddealer.• Switch off the power supply and unplug beforecleaning.• Do not touch the aluminium fin, sharp parts maycause injury.• Do not use benzine, thinner or scouring powder.• Use only soap ( pH 7) or neutral householddetergent.• Do not use water hotter than 40 °C.Indoor unitWipe the unit gently with a soft,dry cloth.Front panelWash gently and dry.Remove the front panelFor CS-UZ9SKE, CS-UZ12SKE, CS-PZ9SKE, CS-PZ12SKE:POWERTIMERFor both sides231 Raise2 Slide to the right or left3 Pull out the panelFor CS-UZ18SKE, CS-PZ18SKE:POWERTIMERRaise1Pull out2Close it securelyPOWERTIMERInsert at both sides12 Close down3 Press both ends of the front panelIndoor unitAir fi ltersEvery 2 weeks• Wash/rinse the filters gentlywith water to avoid damage tothe filter surface.• Dry the filters thoroughly under shade, away fromfire or direct sunlight.• Replace any damaged filters.Remove air fi lter Attach air fi lterInsert into the unitAir Purifying Filter• Applicable to CS-UZ9SKE, CS-UZ12SKE,CS-UZ18SKE only.• Do not wash the air purifying filter.• Replace the filter every 2 years or replace anydamaged filter. Part no.: CZ-SA31PAir Purifying Filter (Example for CS-UZ18SKE)For seasonal inspection after extended non-use• Checking of remote control batteries.• No obstruction at air inlet and air outlet vents.• Use Auto OFF/ON button to select COOL/HEAT operation. After 15 minutes of operation,it is normal to have the following temperaturedifference between air inlet and air outlet vents:COOL: ≥ 8 °C HEAT: ≥ 14 °CFor extended non-use• Activate HEAT mode for 2~3 hours to removemoisture left in the internal parts thoroughly toprevent mould growth.• Turn off the power supply and unplug.• Remove the remote control batteries.POWERTIMERAluminium finFront panelAir filtersAir Purifying Filter(CS-UZ18SKE)Air PurifyingFilter( CS-UZ9SKE,CS-UZ12SKE)