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En-17
● OPERATING INSTRUCTIONS ●
Even if these items are checked, when the unit does not recover from the
trouble, stop using the air conditioner and consult your dealer.
Symptom Explanation & Check points
Indoor Unit
Theunitcannotbeoperated.
• Isthebreakerturnedon?
• Isthepowersupplyplugconnected?
• IstheONtimerset?
Page10
Thehorizontalvanedoesnot
move.
• Are thehorizontal vaneand theverticalvane
installedcorrectly?
• Isthefanguarddeformed?
• Whenthebreakeristurnedon,thehorizontal
vanes’positionwillberesetinaboutaminute.
Aftertheresethascompleted,thenormalhori-
zontalvanes’operationresumes.Thesameis
trueintheemergencycoolingoperation.
Theunitcannotbeoperatedfor
about3minuteswhenrestarted.
• Thisprotectstheunitaccordingtoinstructions
fromthemicroprocessor.Pleasewait.
Mistisdischargedfromtheair
outletoftheindoorunit.
•
Thecoolairfromtheunitrapidlycoolsmoisture
intheairinsidetheroom,anditturnsintomist.
TheswingoperationoftheHORI-
ZONTALvANEissuspendedfora
while,thenrestarted.
• ThisisfortheswingoperationoftheHORIZON-
TALvANEtobeperformednormally.
WhenSWINGisselectedin
COOL/DRY/FANmode,the
lowerhorizontalvanedoesnot
move.
• Itisnormalthatthelowerhorizontalvanedoes
notmovewhenSWINGisselectedinCOOL/
DRY/FANmode.
Theairowdirectionchanges
duringoperation.
Thedirectionofthehorizontal
vanecannotbeadjustedwith
theremotecontroller.
• When the unit is operated in COOL or DRY
mode,iftheoperationcontinueswithairblow-
ingdownfor0.5to1hour,thedirectionofthe
airowisautomaticallysettoupwardposition
topreventwaterfromcondensinganddripping.
• In the heating operation, if the airow tem-
peratureistooloworwhendefrostingisbeing
done,thehorizontal vaneisautomaticallyset
tohorizontalposition.
Theoperationstopsforabout
10minutesintheheating
operation.
• Outdoorunitisindefrost.
Since this is completed in max. 10 minutes,
pleasewait.(Whentheoutside temperatureis
toolowandhumidityistoohigh,frostisformed.)
Theunitstartsoperationby
itselfwhenthemainpoweris
turnedon,buthasn’treceived
signfromtheremotecontroller.
• These models are equipped with an auto
restart function. When the main power is
turned off without stopping the unit with the
remote controller andisturned on again, the
unitstartsoperationautomaticallyinthesame
modeastheonesetwiththeremotecontrol-
ler justbeforethe shutoff of the main power.
Referto“Autorestartfunction”.
Page10
Thetwohorizontalvanestouch
eachother.Thehorizontal
vanesareinanabnormalposi-
tion.Thehorizontalvanesdo
notreturntothecorrect“close
position”.
Performoneofthefollowing:
•
Turnoffandonthebreaker.Makesurethehori-
zontalvanesmovetothecorrect“closeposition”.
• Startandstoptheemergencycoolingoperation
andmakesurethehorizontalvanesmovetothe
correct“closeposition”.
In COOL/DRY mode, when the
room temperature reaches near
theset temperature,the outdoor
unit stops, then the indoor unit
operatesatlowspeed.
• Whentheroomtemperaturedeviatesfromthe
settemperature,theindoorfanstartsrunning
accordingtothesettingsontheremotecontrol-
ler.
Theindoorunitdiscolorsover
time.
• Althoughplasticturnsyellowduetotheinuence
of some factors such as ultraviolet light and
temperature,thishasnoeffectontheproduct
functions.
Theoperationindicatorlampis
dim.Theunitdoesnotbeep.
• IstheNIGHTmodeset? Page9
Multi system
Theindoorunitwhichisnot
operatingbecomeswarmanda
sound,similartowaterowing,
isheardfromtheunit.
• Asmallamountofrefrigerantcontinuestoow
intotheindooruniteventhoughitisnotoperat-
ing.
Whenheatingoperationis
selected,operationdoesnot
startrightaway.
• Whenoperationisstartedduringdefrostingof
outdoorunitisdone,ittakesafewminutes(max.
10minutes)toblowoutwarmair.
Outdoor Unit
Thefanoftheoutdoorunitdoes
notrotateeventhoughthecom-
pressorisrunning.Evenifthe
fanstartstorotate,itstopssoon.
• When the outside temperature is low during
coolingoperation,thefanoperatesintermittently
tomaintainsufcientcoolingcapacity.
Waterleaksfromtheoutdoor
unit.
• DuringCOOLandDRYoperations,pipeorpipe
connectingsectionsarecooledandthiscauses
watertocondense.
• Intheheatingoperation,watercondensedon
theheatexchangerdripsdown.
• Intheheatingoperation,thedefrostingoperation
makesiceformingontheoutdoorunitmeltand
dripdown.
Whitesmokeisdischargedfrom
theoutdoorunit.
• Intheheatingoperation,vaporgeneratedbythe
defrostingoperationlookslikewhitesmoke.
Symptom Explanation & Check points
Remote controller
Thedisplayontheremote
controllerdoesnotappearorit
isdim.Theindoorunitdoesnot
respondtotheremotecontrol
signal.
• Arethebatteriesexhausted?Page5
• Is the polarity (+, -) of the batteries correct?
Page5
• Areanybuttonsontheremotecontrollerofother
electricappliancesbeingpressed?
Does not cool or heat
Theroomcannotbecooledor
heatedsufciently.
• Isthetemperaturesettingappropriate?
Page6
• Is the fan setting appropriate? Please change
fanspeedtoHighorSuperHigh.
Page7
• Aretheltersclean?Page13
•
Is the fan or heat exchanger of the indoor unit
clean?
Page13
• Arethereanyobstaclesblockingtheairinletor
outletoftheindoororoutdoorunit?
• Isawindowordooropen?
• It maytake a certaintime toreachthe setting
temperatureormaynotreachthatdependingon
thesizeoftheroom,theambienttemperature,
andthelike.
• IstheNIGHTmodeset?
Page9
Theroomcannotbecooled
sufciently.
• Whenaventilationfanoragascookerisused
inaroom,thecoolingloadincreases,resulting
inaninsufcientcoolingeffect.
• Whentheoutsidetemperatureishigh,thecooling
effectmaynotbesufcient.
Theroomcannotbeheated
sufciently.
• Whentheoutsidetemperatureislow,theheating
effectmaynotbesufcient.
Airdoesnotblowoutsoonin
theheatingoperation.
• Pleasewaitastheunitispreparingtoblowout
warmair.
Airow
Theairfromtheindoorunit
smellsstrange.
• Aretheltersclean?Page13
• Isthefanorheatexchangeroftheindoor unit
clean?Page13
• The unit may suck in an odor adhering to the
wall,carpet,furniture,cloth,etc.andblowitout
withtheair.
Sound
Crackingsoundisheard. • Thissoundisgeneratedbytheexpansion/con-
tractionofthefrontpanel,etc.duetochangein
temperature.
“Burbling”soundisheard. • This sound is heard when the outside air is
absorbedfromthedrainhosebyturningonthe
rangehoodortheventilationfan,makingwater
owinginthedrainhosetospoutout.
This sound isalso heardwhenthe outsideair
blows into the drain hose in case the outside
windisstrong.
Mechanicalsoundisheard
fromtheindoorunit.
• Thisistheswitchingsoundinturningon/offthe
fanorthecompressor.
Thesoundofwaterowingis
heard.
• This is the sound of refrigerant or condensed
waterowingintheunit.
Hissingsoundissometimes
heard.
• This is the sound when the ow of refrigerant
insidetheunitischanged.
Timer
Weeklytimerdoesnotoperate
accordingtosettings.
• IstheON/OFFtimerset?Page10
• Transmit the setting information of the weekly
timerto the indoorunit again.When the infor-
mationissuccessfullyreceived,alongbeepwill
soundfromtheindoorunit.Ifinformationfailsto
bereceived,3shortbeepswillbeheard.Ensure
informationissuccessfullyreceived.
Page11
• Whenapowerfailureoccursandthemainpower
turns off, the indoor unit built-in clock will be
incorrect.Asaresult,theweeklytimermaynot
worknormally.
Be sure to place the remote controller where
the signal can be received by the indoor unit.
Page5
Theunitstarts/stopstheopera-
tionbyitself.
• Istheweeklytimerset?Page11
WHEN YOU THINk THAT TROUBLE HAS OCCURRED
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