9 English To learn more... / Cleaning instructionsCleaning instructionsTo ensure optimal performance of the unit,cleaning has to be carried out at regularintervals. Dirty unit may cause malfunctionand you may see error code “H99”. Pleaseconsult authorised dealer.• 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.Outdoor unitClear debris that surround the unit.Clear any blockage from drainpipe.Front panelWash gently and dry.Remove the front panelRaisePull out12Close it securelyInsert at both sides1Press both ends of the front panel3Close down2Air filtersEvery 2 weeks• Wash/rinse the filters gentlywith water to avoid damage tothe filter surface.• Dry the filters thoroughly under shade, awayfrom fire or direct sunlight.• Replace any damaged filters.Remove air fi lter Attach air filterInsert into the unitAir Purifying Filter• Do not wash/rinse the filter with water.• Replace the filter every 2 years or replace anydamaged filter.Part no.: CZ-SA31PAir Purifying FilterFor 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 thefollowing temperature difference between air inlet and airoutlet vents:COOL: ≥ 8 °C HEAT: ≥ 14 °CFor extended non-use• Activate HEAT mode for 2~3 hours to remove moisture leftin the internal parts thoroughly to prevent mould growth.• Turn off the power supply and unplug.• Remove the remote control batteries.Indoor unitAluminium finFront panelAir filters