Pre-season Inspection Clean the air filters, re-insert and operate the airconditioners. Is the discharged air cold / warm?Operation is normal if 15 minutes after the start ofoperation, the difference between the air intake andoutlet vents temperature is:- Are the air intake or outlet vents of the indoor oroutdoor units obstructed? Are the remote control batteries weak?If the remote control display appears weak, replacethe batteries. When the Air Conditioner is Not Usedfor an Extended Period of Time1 To dry the internal parts of the indoor unit, operatethe unit for 2 - 3 hours using:-2 Turn off the power supply and unplug.Note: If the unit is not switched off by the remote control,it will start operating when you plug in (because the unitis equipped with Auto Restart Control).3 Remove the remote control batteries. Recommended Inspection• After used over several seasons, the unit will becomedirty and thus decreases the unit’s performance.Depending on the operation conditions, a dirty unitmay produce odour and dust may pollutedehumidification system. Therefore, a seasonalinspection is recommended in addition to regularcleaning. (Consult an authorized dealer).Cooling ModelFAN operationHeat Pump ModelCOOL operation with30°C set temperatureCooling ModelCOOL – 8°C or aboveHeat Pump ModelCOOL – 8°C or aboveHEAT – 14°C or aboveHELPFUL INFORMATION Auto Operation Automatic Operation• If the remote control fails to function or has beenmisplaced, press the Auto Operation button to startthe Automatic operation.• The Automatic operation will be activatedimmediately once the Auto operation button ispressed. However, temperature cannot be adjustedin this operation.• The power indicator on the indoor unit will blink untilthe operation mode is selected automatically.• To cancel this operation, press once more. Timer Setting• When power failure occurs, the timer setting will becancelled. Once power is resumed, reset the timer. Thunder and Lightning• This air conditioner is equipped with a built-in surgeprotective device. However, in order to furtherprotect your air conditioner from being damaged byabnormally strong lightning activity, you may switchoff the main power supply and unplug from powersocket.ENERGY SAVING AND OPERATIONHINTS Setting the Temperature• Approximately 10% of electricity can be saved.• Set the temperature higher or lower than thedesired temperature.Cooling ModelCooling Operation : 1°C higherHeat Pump ModelCooling Operation : 1°C higherHeating Operation : 2°C lower Air Filters• Clean the air filters every 2 weeks.• Dirty filters may reduces cooling or heatingefficiency. Keep All Doors and Windows Closed• Otherwise, cooling or heating performance will bereduced and electricity cost is wasted. Outdoor Unit• Do not block the air outlet vents. Otherwise, it willlower the cooling or heating performance. Timer and Sleep Mode• To prevent wastage of electricity, use sleep modewhen sleeping or Timer when going out. Avoid Direct Sunlight• Keep curtains or drapes closed to avoid directsunlight during cooling operation.Press the Auto Operation ButtonAUTOOFF/ON Call the Dealer ImmediatelyIf the following conditions occur, turn off and unplug themain power supply, and then call the dealer immediately.• Abnormal noise is heard during operation.• Water or foreign material gets into the remotecontrol by mistake.• Water leak from the indoor unit.• Switches or buttons do not operate properly.• The circuit breaker switches off frequently.• Power supply cord and plug become unusuallywarm.TROUBLESHOOTING Normal OperationIs it okay?• Air conditioner has been restarted, but does notoperate for 3 minutes.• A sound like water flowing can be heard.• It seems that fog is coming out from the airconditioner.• The room has a peculiar odour.• The outdoor unit emits water or steam.• (For Heat Pump Model only)Operation stops for about 9 minutes duringheating (The power indicator blinks).• (For Heat Pump Model only)During heating operation, indoor fan mayrun at on and off conditions. Abnormal OperationIs it okay?• The air conditioner does not operate.• Air conditioner produces loud noise duringoperation.• The air conditioner does not cool or warmeffectively.This is the answer• This is to protect the air conditioner. Wait until the airconditioner begins to operate.• This is the sound of refrigerant flowing inside the airconditioner.• Condensation occurs when the airflow from the airconditioner cools the room.• This may be a damp smell emitted by the wall,carpet, furniture or clothing in the room.• In COOL/DRY operation, moisture in the aircondenses into water on the cool surface of outdoorunit piping that causes dripping.• This is to melt the frost which has accumulated onthe outdoor unit (defrosting operating). This will takeno longer than about 9 minutes. Water drips fromthe outdoor unit. Wait until this operation ends.(the power indicator will light up). (Frost willaccumulates on the outdoor unit when the outdoortemperature is low and humidity is high.)• This is to prevent undesired cooling effect duringheating operation.Please check• Has the circuit breaker been tripped?• Has the power plug been removed from the walloutlet?• Is the timer being used correctly?• Is the installation work slanted?• Is the front grille closed properly?• Has the temperature been set incorrectly?• Are the filters dirty?• Are the intake or outlet vents of the outdoor unitobstructed?• Are all windows and doors closed?24CS-A12ATP5 CU-A12ATP5 / CS-A18ATP5 CU-A18ATPT5 / CS-A24ATP5 CU-A24ATPT5