Midea MCD-48HRFN1-Q User manual

Four-wayCassetteType
OWNER'S MANUAL
Thankyouverymuchforpurchasingourairconditioner,
Beforeusingyourairconditioner,pleasereadthismanualcarefullyandkeepit forfuturereference.

1
2
3
4
5
6
7
8
9
10
11
12
Airflowlouver(atairoutlet) Air-ingrill
Drainpump(drainwaterfromindoorunit) Displaypanel
Drainpipe Remotecontroller
Airoutlet Refrigerantpipe
Airfilter(insideair-ingrill) Airinlet
AirinletAirinlet Airoutlet
3
910
10
11
11
11
11
11
11
12
12
12
Allthepicturesinthismanualareforexplanationpurposeonly.Theymaybeslightlydifferent fromtheair
conditioneryoupurchased(dependonmodel).The actualshapeshallprevail.
NOTE
OR
10
11
1
578
2
4
6
Fig.1
TIMEON
TIM EOFF
C
LOCK
SWING
OK
ECO
SWING
MODE
FAN
SPEED
M
C /
H

owner smanual
Topreventinjurytotheuserorotherpeopleandproperty
damage,thefollowinginstructionsmustbefollowed. Incorrect
operationduetoignoringofinstructionsmaycauseharmor
damage.
WARNING
Askyourdealerforinstallation oftheairconditioner.
Incompleteinstallationperformedbyyourselfmayresultina
waterleakage, electricshock,andfire.
Askyourdealerforimprovement,repair,and
maintenance.
Incompleteimprovement, repair,andmaintenancemayresult
inawaterleakage, electricshock,andfire.
Inordertoavoid electricshock,fireorinjury,orifyou
detectanyabnormalitysuchassmelloffire,turnoff the
powersupplyand call yourdealerforinstructions.
Neverlettheindoorunitortheremotecontrollergetwet.
Itmaycauseanelectricshockorafire.
Neverpressthebuttonoftheremotecontrollerwitha
hard, pointed object.
Theremotecontrollermaybedamaged.
Neverreplaceafusewiththatofwrong ratedcurrentor
otherwireswhenafuseblowsout.
Useofwireorcopperwiremaycausetheunittobreakdown
orcauseafire.
Itisnotgoodforyourhealthtoexposeyourbodytothe
airflowforalongtime.
Donotinsertfingers,rodsorotherobjectsintotheair
inletoroutlet.
Whenthefanisrotatingat highspeed,itwillcauseinjury.
Neveruseaflammablespraysuchashairspray,lacquer
orpaintneartheunit.
Itmaycauseafire.
Nevertouchtheairoutletorthehorizontalbladeswhile
theswingflap isin operation.
Fingersmaybecomecaughtortheunit maybreakdown.
Neverputanyobjectsintotheairinletoroutlet.
Objectstouchingthefanathighspeedcanbedangerous.
Neverinspectorservicetheunitbyyourself.
Ask aqualifiedservicepersontoperformthiswork.
Donotdispose thisproductasunsortedmunicipal
waste.Collection ofsuchwasteseparatelyforspecial
treatmentisnecessary.
Donotdisposeofelectricalappliancesasunsorted
municipalwaste,useseparatecollectionfacilities.
Contactyoulocalgovernmentforinformationregardingthe
connectionsystems available.
Ifelectricalappliancesaredisposedofinlandfillsor
dumps,hazardoussubstances canleakintothe
groundeaterandgetintothefoodchain,damagingyour
health andwell-being.
Topreventrefrigerantleak,contactyourdealer.
Whenthesystemisinstalledandrunsinasmallroom,itis
requiredtokeeptheconcentrationoftherefrigerant, ifbyany
chancecomingout,belowthe limit.Otherwise,oxygeninthe
roommaybe affected, resultingin aseriousaccident.
Therefrigerantintheairconditionerissafeand normally
doesnotleak.
Iftherefrigerantleaksintheroom,contactwithafireofa
burner, aheateroracookermayresultinaharmfulgas.
Turnoff anycombustibleheatingdevices,ventilatethe
room,and contactthedealerwhereyoupurchasedthe
unit.
Donotusetheairconditioneruntilaservicepersonconfirms
thattheportionwheretherefrigerant leaksisrepaired.
Donotusetheairconditionerforotherpurposes.
Inordertoavoidanyqualitydeterioration,donotusetheunit
forcooling precisioninstruments,food,plants,animalsor
worksof art.
Beforecleaning,besuretostoptheoperation,turnthe
breakeroff orpull outthesupplycord.
Otherwise,anelectricshock andinjurymayresult.
In orderto avoidelectricshockorfire,makesurethatan
earthleakdetectorisinstalled.
Besuretheairconditionerisgrounded.
Inordertoavoidelectricshock,makesurethatthe unitis
groundedandthattheearthwireisnotconnectedtogasor
waterpipe, lightningconductorortelephoneearthwire.
Inordertoavoid injury,donotremovethefanguardof
theoutdoorunit.
WARNING
Thesafetyprecautionslistedaredividedintotwocategories. Ineither
case,important safetyinformationislistedwhichmustbe read
carefully.
CAUTION
Failuretoobserveacaution mayresultininjuryordamage
totheequipment.
Failuretoobserveawarningmayresult indeath. The
applianceshallbeinstalledinaccordancewithnational
wiringregulations.
CONTENTS PAGE
CAUTION

owner smanual
Donotoperatetheairconditionerwith awethand.
Anelectricshockmayhappen.
Donottouchtheheatexchangerfins.
Thesefinsaresharpandcouldresultincuttinginjuries.
Donotplace items whichmightbedamagedbymoisture
undertheindoorunit.
Condensationmayformifthehumidityisabove80%,the
drainoutlet isblockedorthefilterispolluted.
Afteralonguse,checktheunitstandandfittingfor
damage.
Ifdamaged, theunitmayfallandresultininjury.
Toavoidoxygendeficiency,ventilatetheroom
sufficientlyifequipmentwithburnerisusedtogether
withtheairconditioner.
Arrangethedrainhosetoensuresmoothdrainage.
Incompletedrainage maycausewetting ofthe building,
furnitureetc.
Nevertouchtheinternalpartsofthecontroller.
Donotremovethefrontpanel.Somepartsinsideare
dangeroustotouch,and amachinetroublemayhappen.
Neverexposelittlechildren,plantsoranimalsdirectlyto
theairflow.
Adverseinfluencetolittlechildren,animalsand plantsmay
result.
Donotallowachildtomountontheoutdoorunitor
avoid placing anyobjecton it.
Fallingortumblingmayresultininjury.
Donotoperatetheairconditionerwhenusingaroom
fumigation -typeinsecticide.
Failuretoobservecouldcausethe chemicalstobecome
deposited intheunit,whichcouldendangerthehealthof
thosewhoarehypersensitivetochemicals.
Donotplace applianceswhichproduceopenfirein
placesexposedtotheairflowfromtheunitorunderthe
indoorunit.
Itmaycauseincompletecombustion ordeformationofthe
unitduetotheheat.
Donotinstalltheairconditioneratanyplacewhere
flammablegas may leakout.
Ifthegasleaksoutandstays around theairconditioner,a
firemaybreakout.
Theapplianceisnotintendedforusebyyoung children
orinfirmpersonswithoutsupervision.
Thisappliance canbeusedbychildrenagedfrom8
yearsandaboveandpersonswithreducedphysical,
sensoryormentalcapabilities orlackofexperience
and knowledgeiftheyhavebeengivensupervision
orinstruction concerninguseoftheapplianceinasafe
wayand understand thehazardsinvolved. Childrenshall
notplaywiththeappliance.Cleaninganduser
maintenanceshall notbemadebychildrenwithout
supervision.
Thisapplianceisnotintendedforusebypersons
(including children)withreducedphysical, sensoryor
mentalcapabilities,orlackofexperience and
knowledge,unlesstheyhavebeengivensupervision
orinstructionconcerning useoftheappliancebya
person responsiblefortheirsafety.
Childrenshouldbesupervisedtoensurethattheydo not
playwiththeappliance.
Theairconditionerconsistsoftheindoorunit, theoutdoorunit,
theconnecting pipeand theremotecontroller. (SeeFig.2)
Functionindicatorson indoorunitdisplaypanel
Displaypanel Fig.2-1
PRE-DEFindicator(cooling andheatingtype)
orfanonlyindicator(coolingonly type)
Infrared signalreceiver
OperationlampTimerindicator Alarmindicator
Temporarybutton
Thisfunctionisusedtooperatetheunittemporarilyincaseyou
misplacetheremotecontrolleroritsbatteriesareexhausted.
Twomodesincluding AUTOand FORCEDCOOLcanbe
selectedthroughtheTEMPORARYBUTTONontheair-ingrill
controlboxoftheindoorunit. Onceyoupushthisbutton, theair
conditionerwillrun in suchorder:AUTO,FORCEDCOOL,
OFF, andbacktoAUTO.
AUTO
TheOPERATIONlampislit,andtheairconditionerwill run
underAUTOmode.Theremotecontrolleroperationisenabled
tooperateaccordingtothe receivedsignal.
FORCED COOL
TheOPERATIONlampflashes,theairconditionerwill turnto
AUTOafteritisenforcedtocool withawindspeedofHIGHfor
30minutes.Theremotecontrolleroperationisdisabled.
OFF
TheOPERATIONlampgoesoff.TheairconditionerisOFF
whilethe remotecontrolleroperationisenabled.
1
2
3
Thismanualdoesnotinclude RemoteController
Operations,see the<<RemoteControllerOwner's
manual>>packedwiththeunit fordetails.
Use thesysteminthefollowing temperatureforsafeand
effective operation.TheMaxoperation temperaturefor
theairconditioner(Cooling/Heating).
NOTE
Displaypanel Fig.2-2
PRE-DEFindicator(cooling andheatingtype)
orfanonlyindicator(coolingonly type)
OperationlampTimerindicator Alarmindicator
Infrared signalreceiver
Temporarybutton
Ifthesupplycordisdamaged, itmustbereplaced bythe
manufacturer,itsservice agentorsimilarlyqualified
personsinordertoavoid ahazard.
Donotoperateyourairconditionerin awetroomsuch
asabathroomorlaundryroom.
FUNC

owner smanual
1Ifairconditionerisusedoutsidetheaboveconditions,it
maycausetheunit tofunctionabnormally.
Thephenomenon isnormalthatthesurfaceofair
conditioningmaycondensewaterwhen therelative
largerhumidityinroom,pleaseclosethedoorand
window.
Table3-2
Table3-1(forinvertertypeairconditioner)
NOTE
Cooling operation
Dryoperation
Heating operation
(cooling onlytype without)
Mode
Temperature Outdoor
temperature
(forthe modelswithlow
temperaturecoolingsystem)
(forspecialtropicalmodels)
(forspecialtropicalmodels)
temperature
18°C~43°C/ 64 °F~109°F
18°C~52°C/ 64 °F~126°F
-7°C~43°C/ 20 °F~109°F
-7°C~24°C/ 20 °F ~76°F
18°C~43°C/ 64 °F~109°F
18°C~52°C/ 64 °F~126°F
0°C~30°C/ 32 °F~86°F
17°C~32°C
(62 °F ~90°F)
17°C~32°C
(62 °F ~90°F)
Cooling operation
Dryoperation
Heating operation
(cooling onlytype without)
Mode
Temperature Outdoor
temperature
(forthe modelswithlow
temperaturecoolingsystem)
temperature
0°C~50°C/ 32 °F~122°F
0°C~50°C/ 32 °F~122°F
-15°C~50°C/ 5 °F~122°F
-15°C~24°C/ 5 °F~76°F
0°C~30°C/ 32 °F~86°F
17°C~32°C
(62 °F ~90°F)
17°C~32°C
(62 °F ~90°F)
Optimumperformancewillbeachieved within these
operatingtemperaturerange.
2
3
Thefollowingshouldbenoticedtoensureaneconomical
operation.
Adjusttheairflowlouverproperlyandavoiddirectairflowto
roominhabitants.
Adjustthe roomtemperatureproperlyforacomfortable
environment.Avoidexcessiveheatingorcooling.
Preventdirectsunlightduring coolingoperationbyusing
curtainsorblinds.
Ventilateoften.Extended userequiresspecialattentionto
ventilation.
Keepdoorsandwindowsclosed.Ifthedoorsandwindows
remainopen,airwill flowoutofyourroomcausingadecrease
inthe coolingorheatingeffect.
Neverplaceobjectsneartheairinletortheairoutletoftheunit.
Itmaycausedeterioration intheeffectorstoptheoperation.
Set thetimer.
Ifyoudon'tplantousetheunitforalongtime,pleasetakethe
batteriesfromthe remotecontroller.Whenthe powerison,
someenergywillbeconsumed,eveniftheairconditionerisn't in
operation.Sopleasedisconnectthepowertosaveenergy.
Keeptheindoorunitandremotecontrolleratleast1maway
fromtelevisions,radios,stereos,andothersimilarequipment.
Failingtodosomaycausestaticordistorted pictures.
Adirtyairfilterwillreducecoolingorheatingefficiency,please
cleanitoncetwoweeks.
Whiletheunitisin operation, you canadjusttheairflowlouver
tochangetheflowdirection andnaturalizetheroom
temperatureevenly. Thusyou can enjoyitmorecomfortably.
Settheairflowdirection.
PresstheSWINGbuttontoadjustthelouvertothedesired
positionandpressthisbuttonagaintomaintainthelouverat
thisposition.
Adjusttheairflowdirection automatically.
PresstheSWINGbutton, thelouverwill swingautomatically.
Whilethisfunctionisset, theswingfanofindoorunitruns;
otherwise,theswingfandoesn'trun.Theswingscaleofevery
sideis30°. Whentheairconditionerisn'tinoperation(including
whenTIMERONisset),theSWINGbuttonwillbeinvalid.
Adjust it up and down Fig5-1
Fig5-2
Adjust it up and down
Three-minuteprotection feature
Aprotectionfeaturepreventstheairconditionerfrombeing
activatedforapproximately3minutes
whenitrestartsimmediatelyafteroperation.
Auto-restartfunction
Powerfailureduringoperation willstoptheunit completely.
Whenthepowerrestores, theOPERATIONindicatoron the
indoorunitstartsflashing.FortheunitwithoutAuto-restart
feature, torestarttheoperation, pushtheON/OFF button
onthe remotecontroller.Fortheunit withAuto-restart
feature, theunitrestartsautomaticallywithalltheprevious
settingspreservedbythememoryfunction.
RefrigerantLeakageDetection(optional):
Withthisnewtechnology, thedipsplayareawillappearEC(if
applicable)andtheLEDindicationlampscontinueflashing
whentheoutdoorunitdetectsrefrigerantleakage.
LouverAngleMemoryFunction(optional):
Forsomemodels, themachineisspecialdesignedwithlouver
anglememoryfunction.Powerfailureduringoperationor
pressingtheON/OFFbuttonontheremotecontrollerwillstop
theunitcompletely.Whenthepowerrestoresorpressingthe
ON/OFFbuttonontheremotecontrolleragain,theunit restarts
automaticallywiththepreviousopen angleofthehorizontal
louverbythememoryfunction.Sowestronglyrecommendthat
theopenangleofthehorizontallouvershouldnotbesettoo
small,incasethecondensedwaterforms anddropsfromthe
horizontallouver. PresstheManualcontrolbuttonandtheopen
angleofthehorizontallouverwill berestoredtothestandard
angle.
,

owner smanual
CAUTION
Beforeyoucleantheairconditioner,besurethepower
supplyisoff.
Checkifthewiring isnotbroken offordisconnected.
Useadryclothtowipetheindoorunitandremote
controller.
Awetclothmaybeusedtocleantheindoorunitifitis
verydirty.
Neveruseadampcloth on theremotecontroller.
Donotuseachemically-treteddusterforwipingorleave
suchmaterial on theunitforlong.
itmaydamageorfadethesurfaceof theunit.
Donotusebenzine,thinner,polishing powder,orsimilar
solventsforcleaning.
Thesemaycausetheplasticsurfacetocrackordeform.
Cleaning theairfilter
Theairfiltercanpreventthedustorotherparticulatefrom
going inside. Incaseofblockageofthefilter,theworking
efficiencyoftheairconditionermaygreatlydecrease.
Therefore,thefiltermustbecleanedoncetwoweeks during
longtimeusage.
Iftheairconditionerisinstalled inadustplace,cleantheair
filterfrequent.
Iftheaccumulateddustistooheavytobecleaned,please
replacethefilterwithanewone(replaceableairfilterisan
optionalfitting).
Open theair-in grill
Pushthegrillswitchestowardsthemiddlesimultaneouslyas
indicatedin Fig.6-1. Thenpulldowntheair-ingrill.
Thecontrolboxcables,whichareoriginallyconnectedwith
themainbodyelectricalterminatorsmustbepulledoff before
doing asindicatedabove.
1
2
3
4
Take outtheair-in grill(togetherwiththeairfiltershownin
Fig.6-1).
Pull theair-ingrilldownat 45 and lift it up totakeoutthe
grill.
Dismantletheairfilter.
Clean theairfilter
Vacuumcleanerorpurewatermaybeusedtocleantheair
filter.If thedust accumulationistoo heavy, pleaseusesoft
brushand mild detergent toclean it and dryout in coolplace.
Theair-insideshouldfaceupwhenusingvacuumcleaner.
(SeeFig. 6-3)
Theair-insideshouldfacedownwhenusingwater.
(SeeFig. 6-4)
Re-install theairfilter.
Install andclosetheair-in grill in thereverseorderofstep1
and 2andconnectthecontrol boxcables tothe
corresponding terminatorsofthemain body.
5
6
Fig.6-1
Fig.6-2
Fig.6-3
Fig.6-4
Donotdryouttheairfilterunderdirectsunshineorwith
fire.
CAUTION
Maintenanceafteralong stop period
(eg.atthebeginningof theseason)
Maintenancebeforealong stop period
(eg.attheendof theseason)
Checkandremoveeverythingthatmightbeblockinginlet
andoutletventsofindoorunitsandoutdoorunits.
Cleanairfiltersandcasingsofindoorunits.
Referto"Cleaningtheairfilter"fordetailsonhowtoproceed
andmakesuretoinstallcleanedairfiltersbackinthesame
position.
Turnonthe poweratleast 12hoursbeforeoperatingtheunit
inordertoensuresmootheroperation.Assoonashepower
isturnedon,theremotecontrollerdisplaysappear.
Lettheindoorunitsruninfanonlyoperationforabouthalfa
dayinordertodrytheinterioroftheunits.
Clean airfiltersandcasingsofindoorunits.Referto"
Cleaning theairfilter"fordetailsonhowtoproceedand
makesuretoinstallcleanedairfiltersback inthe same
position.

owner smanual
Symptom4:Noise ofairconditionerscooling
Symptom4.1:Indoorunit
WhenhumidityishighduringcoolingoperationIf theinteriorof
an indoorunitisextremelycontaminated,the temperature
distributioninsidearoombecomesuneven.It isnecessaryto
cleantheinterioroftheindoorunit. Ask yourdealerfordetails
oncleaningtheunit.Thisoperationrequiresaqualifiedservice
person.
Whenthesystemischangedovertoheatingoperationafter
defrostoperationMoisturegeneratedbydefrostbecomes
steamandisexhausted.
Acontinuouslow"shah"soundisheardwhenthesystemisin
coolingoperationorat astop.
Whenthedrainpump(optionalaccessories)isinoperation,this
noiseisheard.
A"pishi-pishi"squeakingsoundisheardwhen thesystemstops
afterheatingoperation.
Expansionandcontractionofplasticpartscausedby
temperaturechangemakethisnoise.
Symptom4.2:Indoorunit,outdoorunit
Acontinuouslowhissingsoundisheardwhenthe systemisin
operation.
Thisisthesound ofrefrigerantgasflowingthroughbothindoor
andoutdoorunits.
Acontinuouslowhissingsoundisheardwhenthe systemisin
operation.
Thisisthesound ofrefrigerantgasflowingthroughbothindoor
andoutdoorunits.
Ahissingsoundwhichisheardatthestartorimmediatelyafter
stoppingoperationordefrostoperation.
Thisisthenoiseofrefrigerantcausedbyflowstoporflow
change.
Symptom4.3:Outdoorunit
Whenthetoneof operatingnoisechanges.
Thisnoiseiscausedbythechangeoffrequency.
Theoperationlampisflashingrapidly(5Hz).
Thislampisstillflashingrapidlyafterturnoffthepowerandturn
onagain. (SeeinTable8-1aandTable8-1b)
Remotecontrollerreceivesmalfunctionorthebuttondoesnot
workwell.
Asafetydevicesuchasafuse,abreakerfrequentlyactuates.
Obstaclesandwaterentertheunit.
Waterleaks fromindoorunit.
Othermalfunctions.
Ifoneofthefollowingmalfunctionsoccur,stopoperation, shut
offthepower,and contactwith yourdealer.
Ifthesystemdoes notproperlyoperateexcepttheabove
mentionedcases ortheabove mentionedmalfunctionsis
evident,investigatethesystemaccordingtothefollowing
procedures. (SeeinTable8-2)
8.1Troublesand causesofairconditioner
Symptom5:Dustcomes outoftheunit
Symptom6:Theunitscangive off odours
Whentheunitisused forthefirsttimeinalongtime.
Thisisbecausedust hasgottenintotheunit.
Theunitcanabsorbthesmellofrooms,furniture,cigarettes,
etc., andthenemit it again.
Symptom7:Theoutdoorunitfandoesnotspin.
Duringoperation.Thespeedofthefaniscontrolledinorderto
optimizeproductoperation.
8.2Troublesand causesofremotecontroller
Beforeasking forserving orrepairing,checkthefollowing points.
(SeeinTable8-3)
Symptom1:Thesystemdoesnotoperate
Symptom2:Changeintothefanmodeduring cooling
mode
Symptom3:Whitemistcomes outofaunit
TheairconditionerdoesnotstartimmediatelyaftertheON/OFF
buttonontheromotecontrollerispressed.
Iftheoperationlamplights,thesystemisinnormalcondition.To
preventoverloading ofthe compressormotor,theair
conditionerstarts3minutesafterit isturnedON.
Iftheoperationlampandthe"PRE-DEFindicator(cooling and
heatingtype)orfan onlyindicator(coolingonlytype)" light,it
meansyouchoosetheheatingmodel,Whenjust starting,ifthe
compressorhasnotstarted,theindoorunitappears"anticold
wind"protectionbecauseofitsoverlowoutlet temperature.
Inordertopreventtheindoorevaporatorfrosting,thesystem
willchangeintofanmodeautomatically,restoretothecooling
modeaftersoon.
Whenthe roomtemperaturedropstothesettemperature,the
compressorgoesoff and theindoorunitchangestofanmode;
whenthetemperaturerisesup,thecompressorstartsagain.It
issameintheheatingmode.
Symptom3.1:Indoorunit
Symptom3.2:Indoorunit,outdoorunit
WhenhumidityishighduringcoolingoperationIf theinteriorof
an indoorunitisextremelycontaminated,the temperature
distributioninsidearoombecomesuneven.It isnecessaryto
cleantheinterioroftheindoorunit. Ask yourdealerfordetails
oncleaningtheunit.Thisoperationrequiresaqualifiedservice
person

owner smanual
Refrigerant leakagedetection
malfunction EC
Table8-1a(Applicabletoinverterairconditioneronly)
NO. Malfunction runninglamptimerlamp defrostinglamp alarmlamp
1
2
3
4
5
6
7
8
display(nixietube)
EEPROMmalfunction
Quick-flash E7
Indoorfanunitstallmalfunction Quick-flash E8
Quick-flash
Liftingpanelmalfunction
Quick-flash F1
Quick-flash Quick-flash
Liftingpanelisnot closed Quick-flash Quick-flash On
On
F2
E2
Roomtemperaturesensor
checking channelisabnormal
Quick-flash
E3
Pipetemperaturesensor(T2)
checking channelisabnormall
Quick-flash
E4
Pipetemperaturesensor(T2B)
checking channelisabnormal
Quick-flash
EE
Water-levelalarmmalfunction
Quick-flash
9
In-outdoorunit communication
checking channelisabnormal
Quick-flash E1
10
11
12
13 Indoormaster/slaveunit communicationcheckingchannel
isabnormal F3
Quick-flash Quick-flash
Othermalfunctionsof master/
slaveunit F4
Quick-flash
Quick-flash
Outdoorunitmalfunction Ed
Slow-flash
Quick-flash F0Quick-flash Quick-flash
Liftingpanelcommunication
checking channelisabnormal
Collisionmodelmalfunction E0 Quick-flash
14
Table8-1b(Applicabletofixed-frequencyairconditioneronly)
NO. Malfunction runninglamptimerlamp defrostinglamp alarmlamp
2
3
4
5
6
Roomtemperaturesensor
checking channelisabnormal
Liftingpanel isnot closed
Liftingpanelcommunication
checking channelisabnormal
Waterpumptemperature
sensor
Evaporatorsensormalfunction
Condensersensormalfunction
Water-levelalarmmalfunction
EEPROMmalfunction
Outdoormalfunction
7
8
display
(nixietube)
Quick-flash
Quick-flash
Quick-flash
Quick-flash
Quick-flash
Quick-flash
Quick-flash
Quick-flash
Quick-flash
Quick-flash
Quick-flash
E2
E8
E4
E3
E6
E5
E7
11
Liftingpanelmalfunction
12
13
Quick-flash
Quick-flash
Quick-flash
Quick-flash
Quick-flash
Quick-flash
Quick-flash
Quick-flash
F2
F0
F1
14 Quick-flash Quick-flash
15 Refrigerant leakagedetection
malfunction EC
On
Quick-flash Quick-flash
Outdoorunitlowpressure
malfunction
10
Quick-flash
Quick-flash
Quick-flash Ed
DC motorspeedoutofcontrol
9 Quick-flash Eb
1In-outdoorunit communication
checking channelisabnormal
Quick-flash E1 Quick-flash
Quick-flash

owner smanual
Solution
Cleantheheat exchanger.
Cleantheairfilter.
Eliminatealldirtiesandmakeair
smooth.
Closedoorsandwindows.
Makecurtainsinordertoshelterfrom
sunshine.
Reduceheat source.
ACcoolingcapacityreduces(normal).
Symptoms Causes
Unitdoes notstart
Airflowingnormallybut
completelycan'tcooling
Unitsstartorstop frequently
Low cooling effect
Low heating effect
Powerfailure.
Powerswitchisoff.
Fuseof powerswitchmayhaveburned.
Batteriesofremotecontrollerexhausted
orotherproblemofcontroller.
Temperatureisnot set correctly.
Bein3minutesprotectionof
compressor.
Refrigerant istoolittleortoomuch.
Airornoconcretinggasinthe
refrigeratingcircuit.
Compressorismalfunction.
Voltageistoohighortoolow.
Systemcircuitisblocked.
Waitforthecomebackofpower.
Switchon thepower.
Replacethefuse.
Replacethebatteriesorcheckthe
controller.
Set thetemperatureproperly.
Wait.
Checkleakage, andrightlyrecharge
refrigerant.
Vacuumandrecharge refrigerant.
Maintenanceorchangecompressor.
Installmanostat.
Checkleakage andrightlyrecharge
refrigerant.
Useheatingdevice.
Closedoorsandwindows.
Checkleakage andrightlyrecharge
refrigerant.
Outdoorunitandindoorunitheat
exchangerisdirty.
Theairfilterisdirty.
Inlet/outlet of indoor/outdoorunitsis
blocked.
Doorsandwindowsareopen
Sunlightdirectlyshine.
Toomuchheatresource.
Outdoortemp. istoohigh.
Leakageof refrigerant orlack of
refrigerant.
Outdoortemperatureislowerthan7C.
Doorsandwindowsnotcompletely
closed.
Leakageof refrigerant orlack of
refrigerant.
Table8-2
Findreasonsand solution.
Symptoms Causes
Thefanspeedcannotbe
changed.
CheckwhethertheMODE
indicatedonthedisplayis
"AUTO"
CheckwhethertheMODE
indicatedonthedisplayis
"DRY"
Whentheautomaticmodeis
selected,theairconditionerwill
automaticallychangethe fan
speed.
Whendryoperationisselected,
theairconditionerautomatically
changethefanspeed.Thefan
speedcanbeselectedduring
"COOL","FANONLY", and "HEAT".
Theremotecontrollersignal is
nottransmittedevenwhen
theON/OFF button ispushed.
Checkwhetherthebatteries
intheremotecontrollerare
exhausted. Thepowersupplyisoff.
Noreceiving tonesounds
fromtheindooruniteven
whentheON/OFFbuttonis
pressed.
Checkwhetherthesignal
transmitteroftheremote
controllerisproperlydirected
totheinfrared signalreceiver
of theindoorunit whenthe
ON/OFFbuttonispressed.
Directlytransmit thesignaltransmitter
of theremotecontrollertotheinfrared
signalreceiverof theindoorunit, and
thenrepeatlypushtheON/OFFbutton
twice.
The indication on thedisplay
disappearsafteralapse of
time.
Checkwhetherthetimer
operationhascometoan
endwhentheTIMEROFF
isindicatedonthe display.
Theairconditioneroperationwill
stopuptothesettime.
The TIMERONindicator
goesoffafteralapse of
certaintime.
Checkwhetherthetimer
operationisstartedwhen
the TIMERON isindicated
onthedisplay.
Uptotheset time,theairconditioner
willautomaticallystart andthe
appropriateindicatorwillgo off.
TheTEMP.indicatordoes
notcomeon.
CheckwhethertheMODE
indicatedonthedisplayis
FANONLY
Thetemperaturecannotbesetduring
FANmode.
Solution
Table8-3

QS01U-019AW
202000171396
20131211
The design and specificationsaresubjecttochange withoutpriornoticeforproduct
improvement.Consultwiththesalesagencyormanufacturerfordetails
.