Daikin FHYCP50DVE Operation Manual

Contents

9 EnglishCut off the power supply.• When the main power switch is turned on, somewatts 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 vanishwhen the main power switch is turned off.Clean the air filter and the exterior.• Be sure to replace the air filter to its original placeafter cleaning. Refer to “MAINTENANCE”.The following symptoms do not indicate air condi-tioner malfunctionI. THE SYSTEM DOES NOT OPERATE• The system does not restart immediatelyafter the ON/OFF button is pressed.If the OPERATION lamp lights, the system is innormal condition.It does not restart immediately because a safetydevice operates to prevent overload of the sys-tem. After 3 minutes, the system will turn onagain automatically.• The system does not restart immediately whenTEMPERATURE SETTING button is returned tothe former position after pushing the button.If the OPERATION lamp lights, the system is innormal condition.It does not restart immediately because a safetydevice operates to prevent overload of the sys-tem. After 3 minutes, the system will turn onagain automatically.• The system does not start when the displayshows “ ” (UNDER CENTRALIZEDCONTROL) and it flashes for few secondsafter pressing an operation button.This is because the system is under centralized con-trol. Flashes on the display indicates that the systemcannot be controlled by the remote controller.• The system does not start immediately afterthe power supply is turned on.Wait one minute until the micro computer is pre-pared for operation.• The outdoor unit is stopped.This is because the room temperature hasreached the set temperature. The indoor unitswitches to fan operation.9. NOT MALFUNCTION OF THE AIRCONDITIONERII. The fan speed is different from the setting.• Pressing the fan speed control button doesnot change the fan speed.When the room temperature reaches the settemperature 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.III. AIR BLOW DIRECTION IS NOT AS SPECIFIED.• Actual air blow direction is not as shown onthe remote controller.• Automatic swing setting does not work.Refer to “AIR FLOW DIRECTION ADJUST”.IV. WHITE MIST COMES OUT OF A UNIT• When humidity is high during cooling opera-tion. (In oily or dusty places)If the inside of an indoor unit is extremely con-taminated, the temperature distribution inside aroom becomes uneven. It is necessary to cleanthe inside of the indoor unit. Ask your Daikindealer for details on cleaning the unit. This oper-ation requires a qualified service person.• When the system is changed over to HEATINGOPERATION after DEFROST OPERATION.Moisture generated by DEFROST becomessteam and exists.V. NOISE OF AIR CONDITIONERSA ringing sound after the unit is started.This sound is generated by the temperature reg-ulator working.It will quiet down after about a minute.• A continuous flow “Shuh” sound is heardwhen the systems is in COOLING orDEFROST OPERATION.This is the sound of refrigerant gas flowingthrough both indoor and outdoor units.• A “Shuh” sound which is heard at the start orimmediately after the stop of operation orwhich is heard at the start or immediatelyafter the stop of DEFROST OPERATION.This is the noise of refrigerant caused by flowstop and flow change.• A continuous low “Shah” sound is heardwhen the system is in COOLING OPERATIONor at a stop.The noise is heard when the drain pump is inoperation.• A “Pishi-pishi” squeaking sound is heardwhen the system is in operation or after thestop of operation.Expansion and contraction of plastic partscaused by temperature change makes this noise.

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