9 EnglishAttach the air filter.3.Once cleaning is done, be sure to replace theair fi lter as it was.Push the “filter sign reset” button on the4.remote controller.The display “ ” vanishes.START UP AFTER A LONG STOPConfi rm the followingCheck that the air inlet and outlet are not•blocked.Remove any obstacle.Check if the earth is connected.•Might there be a broken wire somewhere?Contact your dealer if there are any problems.Clean the air filterAfter cleaning the air fi lter, make sure to attach it.•Turn on the main power supply switchThe display on the remote controller will be•shown when the power is turned on.To protect the unit, turn on the main power•switch at least 6 hours before operation.WHAT TO DO WHEN STOPPING THESYSTEM FOR A LONG PERIODTurn on FAN OPERATION for a half day and drythe unit.Read the operation manual that came with the•remote controller.Cut off the power supply.When the main power switch is turned on, some•watts of electricity is being used even if the sys-tem is not operating.Turn off the main power supply switch for savingenergy.The display on the remote controller will vanish•when the main power switch is turned off.Clean the air filter and the exterior.Be sure to replace the air fi lter to its original•place after cleaning. Refer to “HOW TO CLEANTHE AIR FILTER”.ELECTRIC HEATER REPLACEMENTINTERVALThe electric heater should be replaced every10 years.This replacement interval is a guideline for en-•suring safe and trouble-free operation of theproduct for many years.NOT MALFUNCTION OF THE AIR9.CONDITIONERThe following symptoms do not indicate air condi-tioner malfunctionTHE SYSTEM DOES NOT OPERATEI.The system does not restart immediately•after the ON/OFF button is pressed.If the OPERATION lamp lights, the system is innormal condition.It does not restart immediately because asafety device operates to prevent overload ofthe system. After 3 minutes, the system willturn on again automatically.The system does not restart immediately•when TEMPERATURE SETTING button isreturned to the former position after push-ing the button.If the OPERATION lamp lights, the system is innormal condition.It does not restart immediately because asafety device operates to prevent overload ofthe system. After 3 minutes, the system willturn on again automatically.The system does not start when the display•shows “ ” and it fl ashes for few sec-onds after pressing an operation button.This is because the system is under central-ized control. Flashes on the display indicatesthat the system cannot be controlled by theremote controller.The system does not start immediately•after the power supply is turned on.Wait one minute until the micro computer isprepared for operation.The fan speed is different from the setting.II.Pressing the fan speed control button does•not change the fan speed.When the room temperature reaches the set•temperature in heating mode, the outdoor unitstops and the indoor unit switches to whispermode. This is to prevent the cool air from beingblown directly onto anyone in the room.To protect electric parts, the unit operates with•the airfl ow rate at H speed during ELECTRICHEATER operation regardless of the remotecontroller indication.