service manual - citiz

SERV I C E MA NUA LC I T I Z CO F F E E M A CH I N E S

Citiz EF483/484

Citiz&milk EF485/486

Citiz&Co EF487/488

Version1.2en

Citizservicemanual2

CONT EN T S

1 GeneralSafetyNotes........................................................................................6

2 Modeloverview ...................................................................................................7

2.1 Modelrange .......................................................................................................7

2.2 Coreunitversions ..............................................................................................8

3 MainComponents ..............................................................................................9

3.1 Overviewcoreunit,Drange ..........................................................................93.1.1 Interiorviewcoreunit,Drange...........................................................10

3.2 Overviewcoreunit,Crange ........................................................................113.2.1 Interiorviewcoreunit,Crange...........................................................12

3.3 OverviewmodelCitiz .....................................................................................13

3.4 OverviewmodelCitiz&milk ..........................................................................143.4.1 OverviewmilkfrotherAERO3...............................................................15

3.5 OverviewmodelCitiz&Co ............................................................................16

3.6 FluidSystem....................................................................................................173.6.1 Watercircuitdiagramofcoreunit(allCitizversions) ..............................173.6.2 WatercircuitofmodelsCitiz/Citiz&milk...............................................183.6.3 WatercircuitofmodelCitiz&Co ............................................................19

4 TechnicalData ..................................................................................................20

4.1 RatingPlates....................................................................................................204.1.1 Examplesofbrandspecificratingplates ................................................204.1.2 Ratingplatedetails .................................................................................234.1.3 Ratingplateofmilkfrother(modelCitiz&milk) ......................................24

4.2 Summaryoftechnicaldata...............................................................................254.2.1 Technicaldataofcoffeemachines .........................................................254.2.2 Technicaldataofmilkfrother(modelCitiz&milk)..................................274.2.3 DimensionsandweightmodelCitiz ......................................................284.2.4 DimensionsandweightmodelCitiz&milk ...........................................294.2.5 Dimensionsandweightmilkfrother ......................................................294.2.6 DimensionsandweightmodelCitiz&Co.............................................30

5 Operation ............................................................................................................31

5.1 Generalinformation..........................................................................................31

5.2 Statusindication...............................................................................................315.2.1 Statusindicationofcoffeemachine ........................................................315.2.2 StatusindicationofmilkfrotherAERO3..................................................33

5.3 Machinemodes................................................................................................345.3.1 MachinemodesofCitizcoffeemachines...............................................345.3.2 MachinemodesofmilkfrotherAERO3...................................................35

5.4 Program/resetfilluplevel...............................................................................365.4.1 Programmingthefilluplevel...................................................................365.4.2 Resettingthefilluplevel .........................................................................36

5.5 Emptywatersystem.........................................................................................37

Citizservicemanual 3

6 Maintenance ...................................................................................................... 38

6.1 Dailymaintenanceandcleaning ...................................................................... 386.1.1 Beforefirstcoffeeoratthestartofday.................................................. 386.1.2 Afterlastcoffeeorattheendofday....................................................... 396.1.3 MilkfrotherofmodelCitiz&milk ............................................................ 40

6.2 Descaling ......................................................................................................... 416.2.1 DescalingprocedureformodelsCitizandCitiz&milk ........................... 416.2.2 DescalingprocedureformodelCitiz&Co.............................................. 45

7 Troubleshooting ............................................................................................... 49

7.1 Checklistforcoffeemachine(allmodels) ....................................................... 49

7.2 Checklistformilkfrother ................................................................................. 51

8 Repairs............................................................................................................... 52

8.1 Safetyinstructions........................................................................................... 52

8.2 Repairandmountingtips ................................................................................. 52

8.3 Toolsandaccessories ..................................................................................... 55

8.4 PlatformdisassemblymodelCitiz.................................................................. 568.4.1 Generaldisassembly .............................................................................. 568.4.2 Replacingwatertankconnector ............................................................. 598.4.3 Replacingmainsswitch .......................................................................... 608.4.4 Replacingpowercord ............................................................................. 628.4.5 Removingcoreunit................................................................................. 64

8.5 PlatformdisassemblymodelCitiz&milk ....................................................... 678.5.1 Generaldisassembly .............................................................................. 678.5.2 Replacingwatertankconnector ............................................................. 718.5.3 Replacingmilkfrotherconnector ............................................................ 738.5.4 Replacingmainsswitch .......................................................................... 748.5.5 Replacingpowercord ............................................................................. 758.5.6 Removingcoreunit................................................................................. 77

8.6 PlatformdisassemblymodelCitiz&Co......................................................... 808.6.1 Generaldisassembly .............................................................................. 808.6.2 Replacingwatertankconnector ............................................................. 848.6.3 Replacingmainsswitch .......................................................................... 858.6.4 Replacingpowercord ............................................................................. 878.6.5 Removingcoreunits ............................................................................... 89

8.7 Disassemblyofcoreunit,Crange................................................................. 918.7.1 Generaldisassembly .............................................................................. 918.7.2 Replacingcompactbrewingunit............................................................. 968.7.3 Replacingpump...................................................................................... 988.7.4 Replacingflowmeter ............................................................................ 1018.7.5 Replacingautomaticprimingdevice(APD) .......................................... 1028.7.6 ReplacingthermoblockwithNTCsensorandfinewirefuse(s) ............ 1048.7.7 Replacingelectroniccontrolboardwithbuttonprints ........................... 107

8.8 Disassemblyofcoreunit,Drange............................................................... 1098.8.1 Generaldisassembly ............................................................................ 1098.8.2 Replacingelectroniccontrolboardwithbuttonprints ........................... 116

8.9 Wiringdiagrams ............................................................................................. 1188.9.1 WiringdiagramsmodelCitiz............................................................... 1188.9.2 WiringdiagramsmodelCitiz&milk,EF 485 /486 ............................. 1248.9.3 WiringdiagramsmodelCitiz&Co,EF487/488 ............................... 128

Citizservicemanual4

9 Functiontests .................................................................................................130

9.1 Safetyinstructions..........................................................................................130

9.2 Requiredequipment.......................................................................................1309.2.1 Overview ...............................................................................................1309.2.2 Pressureadapter ..................................................................................131

9.3 Measureflowrate...........................................................................................132

9.4 Pressureandleakagechecks ........................................................................1339.4.1 Preparations..........................................................................................1349.4.2 Testrun.................................................................................................135

9.5 Measurecoffeetemperature ..........................................................................136

9.6 Milkfrothertests.............................................................................................1389.6.1 Measurehotmilktemperature ..............................................................1389.6.2 Measuremilkfrothratio ........................................................................138

9.7 NTCtemperaturesensorfunctionality............................................................139

9.8 Protectiveearth(PE)continuitytest...............................................................1419.8.1 Whatcoffeemachinehastobetestedandwhen? ...............................1419.8.2 General .................................................................................................1419.8.3 Testsequence ......................................................................................1429.8.4 Whattodoiftheprotectiveearthcontinuitytestfails............................143

9.9 Protectiveinsulationtest ................................................................................1449.9.1 Whatcoffeemachineshavetobetestedandwhen? ...........................1449.9.2 General .................................................................................................1449.9.3 Testsequence ......................................................................................1459.9.4 Whattodoiftheinsulationtestfails .....................................................147

10 ExplosionDrawings......................................................................................148

10.1 ModelCitiz,coreunitDrange(EF483).......................................................148

10.2 ModelCitiz,coreunitCrange(EF484).......................................................149

10.3 ModelCitiz&milk,coreunitDrange(EF485)............................................150

10.4 ModelCitiz&milk,coreunitCrange(EF486)............................................151

10.5 ModelCitiz&Co,coreunitDrange(EF487)..............................................152

10.6 ModelCitiz&Co,coreunitCrange(EF488)..............................................153

11 PartsList ..........................................................................................................154

12Notes .................................................................................................................158


PRE F A CE

Thepurposeofthisservicemanualistoprovidetheservicepersonnelwithallnecessaryinformationwithregardstocorrecthandling,maintenanceandrepairoftheCitizcoffeemachinetypesEF483/484,EF485/486andEF487/488.

Thismanualshouldbeusedbythetechniciansasavaluableaidtoguaranteethepermanentreadinessforuseofthemachines.Inordertotakefulladvantageofallthefunctions,itisabsolutelynecessarytofollowtheinstructionsinthismanual.

ForfastaccesstoinformationdirectlyfromthePCorMACmonitor,this servicemanualisavailableasPDFfileandcanbedownloadedfromtheNespressotechnicalwebsiteunderhttps://business.nespresso.com.

TherequiredutilitysoftwaretoreadPDFfiles(AdobeReader)forPCsandMACcomputerscanbedownloaded(under http://www.adobe.com)forfreepleaseclickthelogo:

CONT EN T U PD A TE S

Version1.2

Chapter"Functiontests":correctionoftheprotectiveinsulationtest(connectionofthetestequipmenttobothneutralandphasepinsinsteadofgroundpin).Seesubtitle"Testsequence"onpage145,steps1till3(connectionofthemeasuringcable).

Servicemanualisavailableinadditionallanguages:French,German,SpanishandItalian

Version1.1

Firstreleasedservicemanualversion,inEnglishonly.

Version1.0

Testversionforproofreading,inEnglishonly.

Pleasekeepthismanualtogetherwiththecorresponding

servicedocumentation.Thiswayyouareassuredtohavethenecessaryinformation.

2PDFversionsofthisservicemanualcanbeselected:

Ahighlycompressedversionwithlowpictureresolutionandsmallfilesize.

Aversioninprintqualitywithhyperlinks,butwithbigfilesize.

Theversionnumberofthisservicemanualisprintedonthelower

rightcornerofthefrontpage.

Citizservicemanual6

G E N E R A L S A F E T Y N O T E S

1 G EN ERA L S A FE T Y NO T E S

Asanadditionalsafetymeasure,theuseofaresidualcurrentdevice(RCD),alsocalledthegroundfaultcircuitinterrupter(GFCI),intherepaircentreishighlyrecommended.

Riskoffatalelectricalshockandfire!

Mainsvoltageinsidethecoffeemachine.

Unplugappliancebeforecleaning. Nevercleanwetorimmerseplug,cordorapplianceinanyfluid. Disconnectthemainsplugbeforedisassemblytheappliancemust

befreeofvoltage.

Thisdevicedoesnotprotectagainstelectricalshockdue

tocontactwithbothcircuitconductors.

Exampleillustrationsoftypicaldevices.

UseaGFCIwithatriplevelof46mA(USA)resp.aRCDwithatrip

levelof1530mA(Europe).Atriplevelabove30mAprovidesonlyverylimitedprotectionagainstharmfromanelectricshock.

1) RCDprotectedsocketoutlet2) PluginRCDunit

3) GFCIsocket4) PluginGFCI

Dangerofburns!

Hotpartsandwaterunderpressureinsidethecoffeemachine(particularlyinthethermoblock).

Letcoffeemachinecooldownbeforecleaningordisassembly.


M O D E L O V E R V I E W

2 MODE L O V ERV I EW

2.1 Modelrange

WithcoreunitDrange:WithcoreunitCrange:

Eachmodel hasaspecialplatform isavailablein2differentdesigns,dependingonthecoreunitversion(CorDrange).

1) Citiz2) Citiz&milk

3) Citiz&Co

Acoreunitistheactualcoffeemachine,mountedon

aplatform.

Citizservicemanual8

M O D E L O V E R V I E W

2.2 Coreunitversions

Drange CrangeThiscomparisonhelpstoidentifythecoreunitversion.

1) Coffeeoutlet2) Closinghandle

3) Coffeebuttons4) Cupholder

Thereareadditionaldifferencesbetweenthe2versions(cov

ers,wiringetc.)notmentionedinthetable.

Differentcomponents Drange Crange

Coffeeoutlet(1) conturedcoffeeoutlet "flat"coffeeoutlet

Closinghandle(2) chromiumplatedclosinghandle blackclosinghandle

Coffeebuttons(3)arrangedonbothsidesoftheclosinghandle

arrangedbehindtheclosinghandle

Cupholder(4) cupholderwithslottedrecesses cupholderwithcircularrecesses


M A I N C O M P O N E N T S

3 MA I N COMPON ENT S

3.1 Overviewcoreunit,DrangeForplatformcomponentsrefertomodeloverview.

1) Cupsupport2) Wastewatercontainer3) Capsulecontainer(usedcapsules)4) Coffeenozzle5) Steamcover6) Closinghandle

7) Button"smallcup"(Espresso)8) Button"largecup"(Lungo)9) Sidepanelsleft/right10)Rearcover

Citizservicemanual10


3.1.1 Interiorviewcoreunit,Drange

1) Buttonprints2) Capsulebay3) Brewingunit(TMBU,TolkienMini

BrewingUnit)4) Pump(InvensysCP4/SP)5) Flowmeter(FHKSC12)

6) Electroniccontrolboard(withprotectivecovers)

7) Selfprimingdevice(APD)8) NTCtemperaturesensor9) Thermoblock(EF2003)



3.2 Overviewcoreunit,Crange

1) Cupsupport2) Wastewatercontainer3) Capsulecontainer(usedcapsules)4) Sidepanel,left5) Sidepanel,right6) Coffeenozzle

7) Steamcover8) Closinghandle9) Button"smallcup"(Espresso)10)Button"largecup"(Lungo)11)Topcover12)Rearcover



3.2.1 Interiorviewcoreunit,Crange

1) Capsulebay2) Brewingunit(TMBU,TolkienMini

BrewingUnit)3) Buttonprints(undertopcover)4) Pump(InvensysCP4/SP)5) Flowmeter(FHKSC12)

6) Electroniccontrolboard(withprotectivecovers)

7) Selfprimingdevice(APD)8) NTCtemperaturesensor9) Thermoblock(EF2003)



3.3 OverviewmodelCitiz

Thisisthebasicmodelwiththesmallestplatform(9).

Thedripgrid(1) existsin2versions, matcheswiththecupholderofthecoreunitversion(e.g.circularrecesses).

ThismodelispicturedwithaCrangecoreunit.

1) Dripgrid2) Driptray3) Coreunit(e.g.Crange)4) Watertankcover5) Watertank

6) Watertankconnector7) Powercord8) ON/OFFswitch(mainsswitch)9) Platform

ThecoreunitsofmodelCitizandCitiz&milkarenotcom

patibleduetodifferentelectroniccontrolboards.



3.4 OverviewmodelCitiz&milk

Theplatformofthismodelisequippedwithamilkfrother(8).



1) Dripgrid2) Driptray3) Platform4) Storageplacesforwhisks5) Coreunit(e.g.Crange)6) Watertank7) Watertankcover8) Milkfrother(Aero3)

9) Lid10) Milkfrotherstartbutton11) Watertankconnector12) Powercord13) Milkfrotherconnector14) ON/OFFswitch(mainsswitch)15) Cupstorage(removable)

ThecoreunitsofmodelCitizandCitiz&milkarenotcom

patibleduetodifferentelectroniccontrolboards.



3.4.1 OverviewmilkfrotherAERO3

Theinsideofthejug(3) haslevelmarks(6), issurfacecoatedforeasycleaning.

ThemilkfrotherAERO3ispartofthestandardequipment

ofthemodelCitiz&milk.

1) Lid2) Seal3) Jug4) Powerplug5) Startbutton(red/bluebacklighted)

6) Indicationof2max.milklevels(120ml/240ml)

7) Mixerforhotmilk8) Springwhiskformilkfoam



3.5 OverviewmodelCitiz&Co



1) Driptray2) Dripgrid3) ON/OFFswitch(mainsswitch)4) Powercord

5) Coreunits(e.g.2xCrange)6) Watertank7) Watertankcover8) Platform



3.6 FluidSystem

3.6.1 Watercircuitdiagramofcoreunit(allCitizversions)

Legend:

Theselfprimingdevice(4) allowsthepumptosuckwaterwhenitisfilledwithair(newmachine,emptywater

tanketc.) removesairbubblesfromthewatercircuit feedsawater/airmixbackintothewatertank.

1) Watertank2) Flowmeter3) Pump4) Selfprimingdevice5) Thermoblock

6) Minibrewingunit(MBU)7) Capsulecontainer8) Wastewatercontainer9) Driptray

Freshcoldwater

Freshhotwater

Coffee

Waste/dripwater



3.6.2 WatercircuitofmodelsCitiz/Citiz&milk

1) Watertank2) Watertankconnector3) Selfprimingdevice4) Thermoblock

5) Flowmeter6) Coffeeoutlet7) Brewingunit8) Pump



3.6.3 WatercircuitofmodelCitiz&Co

1) Watertank2) Pump3) Brewingunit4) Coffeeoutlet

5) Flowmeter6) Thermoblock7) Watertankconnector8) Selfprimingdevice


T E C H N I C A L D A T A

4 T E CHN I C A L D A T A

4.1 Ratingplates

4.1.1 Examplesofbrandspecificratingplates

Nespresso,EUversion

Thetypeplatecanbefoundatthebottomofthecoffeemachines

platform.

Thisoverviewshowsexamplesofvariousbrandsandissubject

toalterations.

EF484CitizC110red EF483CitizD110black

EF486Citiz&milkC120red EF485Citiz&milkD120black

EF488Citiz&CoC130red EF487Citiz&CoD130black



DeLonghi,EUversion

Koenig,CHversion

EF483CitizD110Limousineblack/DeLonghiEN165.B EF483CitizD11060'sWhite/DeLonghiEN165.CW

EF485Citiz&milkD120Limousineblack/DeLonghiEN265.BAE

EF487Citiz&Co.D130Limousineblack/DeLonghiEN325.B

EF483CitizD110Limousineblack/KoenigCitiz EF483CitizD11060'sWhite/KoenigCitiz

EF485Citiz&milkD120Limousineblack/KoenigCitiz&milk EF487Citiz&Co.D130Limousineblack/KoenigCitiz&Co.



Krups,EUversion

Magimix,EUversion

EF484CitiZXN700510grey EF484CitiZXN700610red

EF486CitiZ&milkXN710610red EF488CitiZ&CoXN750510grey

EF483CitizM190Ref11290black EF483CitizM190Ref11291cream

EF485CitizM190MilkRef11300black EF487CitizM190DuoRef11305black



Turmix,ATversion

4.1.2 Ratingplatedetails

EF484CitizC110fireenginered/TurmixTX170Citiz EF484CitizC110steelgrey/TurmixTX170Citiz

EF486Citiz&milkC120fireenginered/TurmixTX270Citiz&milk

EF488Citiz&Co.C130steelgrey/TurmixTX370Citiz&Co.

1) Brandname2) Voltageandpowerrating3) Placeofmanufacture4) NationalapprovalsignofRussia

(GOSTR)5) NationalapprovalsignofGermany

(VDE)6) Barcode

7) Serialnumber8) Machinetype9) Specialdisposalicon

(donotdisposewithordinarywaste)10)Signofconformity(CE)11)ConformwithRoHSguidelines(lead

freesolder,etc.)12)Articlenumberoftheratingplate



Decodingthealphanumericserialnumber

Example:

4.1.3 Ratingplateofmilkfrother(modelCitiz&milk)

Bydecodingthedateofproductionandmachinetype,the

coffeemachinecanbeidentifiedexactly.

Checksum(ifavailable)

Colorversion

Typeofmainsplug

Mainsvoltage

Distributingpartner

Incrementalnumberperproductionday

Manufacturingplant

Manufacturerdesignationofthemachinetype(EF484)

08312...Dateofproduction(08=year2008,312=312dayoftheyear)

Notehemainsvoltagerangesofthedifferentmodels.



4.2 Summaryoftechnicaldata

4.2.1 Technicaldataofcoffeemachines

Mainsvoltageranges

MainsvoltageforCitiz

Europe,RU,AU,CN,KR,SG,HK,ME,ZA,IL,BR,AR........... 220240V/5060Hz

USA,Canada,BR,MX..............................................................120127V/5060Hz

Japan .............................................................................................. 100V/5060Hz*

MainsvoltageforCitiz&milk

Europe,RU,AU,CN,KR,SG,HK,ME,ZA,IL,BR,AR........... 220240V/5060Hz

USA,Canada,BR,MX..............................................................120127V/5060Hz

MainsvoltageforCitiz&Co

Europe,RU,AU,ME,IL............................................................ 220240V/5060Hz

Approvals

ApprovalsforCitiz ........................CE,UL"forUSAandCanada",PSE,GostR,Ctick,

CCC,KTL,SPRING,SASO,SABS,ISI,IRAM,NOM

ApprovalsforCitiz&milk ............ CE,UL"forUSAandCanada",GostR,Ctick,CCC,

KTL,SPRING,SASO,SABS,ISI,IRAM,NOM

ApprovalsforCitiz&Co .................................................. CE,GostR,Ctick,SASO,ISI

Powerratingsofcoffeemachinemaincomponents(forallvoltagesandfrequencies)

Thermoblock .....................................................................................................1200W*

*modelCitiz&Co,Australia:1080W

Pump................................................................................................................. 55/60W

Performancedataofcoreunit

Heatingup

Citiz ...................................................................................................... approx.7.6WhCitiz&milk ........................................................................................... approx.7.6WhCitiz&Co........................................................................................... approx.14.9Wh

1smallcup(40ml*)

Citiz ...................................................................................................... approx.4.3WhCitiz&milk ........................................................................................... approx.4.3WhCitiz&Co(bothheads)........................................................................ approx.7.6Wh*Defaultsetting

TechnicaldataarevalidforallCitizmodelsunlessexplicitly

statedotherwise.



1largecup(110ml*)

Citiz ...................................................................................................... approx.8.7WhCitiz&milk ........................................................................................... approx.8.7WhCitiz&Co(bothheads) ...................................................................... approx.14.8Wh*Defaultsetting

Standbyoperation(in1hour)

Citiz ...................................................................................................... approx.0.7WhCitiz&milk ........................................................................................... approx.0.7WhCitiz&Co ............................................................................................. approx.2.2Wh

Pump

Pumppressure

Max.permissible .............................................................................. 17.5bar1.5bar

Duringcoffeepreparation(dependingonthetypeofcoffee)..........................916bar

Flowperformance..................................................................120240ml/min.at12bar

Capacities

Watertank

Citiz ........................................................................................................................1.0lCitiz&milk .............................................................................................................1.0lCitiz&Co ...............................................................................................................1.4l

DriptrayCitiz ....................................................................................................................100mlCitiz&milk .........................................................................................................180mlCitiz&Co ...........................................................................................................250ml

Capsulecontainer

Citiz,Citiz&milk .................................................................................... 911capsulesCitiz&Co ........................................................................................2x(912)capsules

Temperatures

Operatingtemperature ................................................................... +5Cupto+45C

Storagetemperature..................................................................... 25Cupto+60C

Safetytemperature(thermalcutoff)................................................................... 167C

Coffeetemperatureatoutlet....................................................................... 86C3C

Variousdata

Noiseduringbrewingcycle....................................................................max.60dB(A)**modelCitiz&milk:measuredwithoutmilkfrother

*modelCitiz&Co:measuredwithonlyonecoreunitrunning

Preheatingtime .......................................................................................approx.60sec

Cablelength .............................................................................................. approx.1.2m

Advisedwatertankcapacitiestoavoidspilling.



4.2.2 Technicaldataofmilkfrother(modelCitiz&milk)

Mainsvoltage

Europe........................................................................................ 220240V/5060Hz

USA/Canada ................................................................................120127V/5060Hz

Themilkfrother isavailablein2differentmodels,dependingonabovemainsvoltageranges, hastomatchthemainsvoltagerangeoftheassociatedcoffeemachine.

Powerrating(dependingonmainsvoltage)

220240V,5060Hz..................................................................................... 410490W

110127V,5060Hz..................................................................................... 380505W

Standbyoperation ...............................................................................................



Performancedata

Whiskspeed......................................................................................... 20002700rpm

Preparationtimes(withfull,semiskimmedorskimmedmilkat810Cfridgetemperature)Hotmilkfroth(120ml) .....................................................................................5080sec

Coldmilkfroth(120ml) ...................................................................................6080sec

Hotmilk(240ml) .........................................................................................120180sec

Temperature

Hotmilk ............................................................................................. +60Cto+70C

Foammilk.......................................................................................... +60Cto+70C

Variousdata

Noiseemission ........................................................................................ max.55dB(A)

4.2.3 DimensionsandweightmodelCitiz

Dimensions(widthxheightxlength).............................................130x277x372mm

Cupsupportdown .............................. 8590mm,forespressoandlungocups/glasses

Cupsupportup.......................................................150155mm,formacchiatoglasses

Weight(withoutwater)..............................................................................approx.3.4kg

Theoveralldimensionsarethesameforbothcoreunitver

sions(CandDrange).

Dimensionsinmm



4.2.4 DimensionsandweightmodelCitiz&milk

Dimensions(widthxheightxlength) ............................................ 237x277x372mm

Weight(withoutwater,milkfrotherincluded) ...........................................approx.4.6kg

4.2.5 Dimensionsandweightmilkfrother

Dimensionsofjugcpl.(diameterxheight) ................................................91x170mm

Whiskforfoam(diameterxheight) ..............................................................33x32mm

Mixerforhotmilk.................................................................................. 15x34x32mm

Weight(withwhiskandmixer) ..............................................................................0.7kg


sions(CandDrange).

Dimensionsinmm



4.2.6 DimensionsandweightmodelCitiz&Co

Dimensions(widthxheightxlength).............................................326x281x286mm

Weight(withoutwater).................................................................................approx.7kg


sions(CandDrange).

Dimensionsinmm.


O P E R A T I O N

5 O P ERA T I ON

5.1 Generalinformation

ForanoverviewofoperationalcontrolsseeMainComponentsonpage 9.Forbasicoperationofthemachinesuchaspreparingacoffeeandotherrelatedinformation,refertotheusermanual.Tosimplifymatters,themodelCitizwithcoreunitCrangeisusedtoexemplifythroughoutthischapter.

5.2 Statusindication

5.2.1 Statusindicationofcoffeemachine

ThetwocoffeebuttonswithgreenLEDbacklightshowthestatusofthecoffeemachineaccordingtothefollowingtable:

Machinestatusetc. "Smallcup" button

"Largecup" button

LEDsignal

Off BothLEDsoff

SelftestBlinking1Hz,0.5son,0.5soff

Error

Blinkingfast(2Hz,0.25 son/0.25soff)3timesevery2seconds

HeatupBlinking1Hz,0.5son,0.5soff

Ready BothLEDson

BrewingsmallcupBlinking1Hz,0.5son,0.5soff

BrewingbigcupBlinking1Hz,0.5son,0.5soff

Rinsesmallcup

Blinking1Hz,0.5son,0.5soff(sameasbrewingsmallcup)

Rinsebigcup

Blinking1Hz,0.5son,0.5soff(sameasbrewingbigcup)


O P E R A T I O N

Volumebrewingsmallcup

Blinking1Hz,0.5son,0.5soff(sameasbrewingsmallcup)

Volumebrewingbigcup

Blinking1Hz,0.5son,0.5soff(sameasbrewingbigcup)

DescalingreadyBlinking2Hz,0.25son,0.25soff

Descalingpumpon(descal)

Blinking2Hz,0.25son,0.25soff(sameasdescalingreadymode)

Descalingpumpoff(descal)

Blinking2Hz,0.25son,0.25soff(sameasdescalingreadymode)

Emptying/EvaporatingBlinking2Hz,0.25son,0.25soff

StandbyBlinking0.5Hz,1son,1soffalternately

ResettingBlinking2Hz,0.25son,0.25soffindicationfor3s

PowersaveBlinking0.2Hz,2.5son,2.5soffalternately

OverheatBlinking1Hz,0.5son,0.5soff(sameasheatup)

PowersaveactivationBlinking0.5Hz,1son,1soffalternately5times

Machinestatusetc."Smallcup"

button"Largecup"

buttonLEDsignal


O P E R A T I O N

5.2.2 StatusindicationofmilkfrotherAERO3

Theoperatingbuttonwithred/bluebacklightshowsthestatusofthemilkfrotheraccordingtothefollowingtable:

Powersavedeactivation(onlyformodelCitiz&Co)

Blinking0.5Hz,1son,1soffalternately3times

Machinestatusetc."Smallcup"

button"Largecup"

buttonLEDsignal

Toresetaredblinkingbacklight:

1.Removemilkfrotherfromplatform.2.Removecauseoffailureifpossible.

Machinestatusetc. Operatingbutton Lightsignal

Off Backlightoff

Onhotmilkpreparation Redbacklighton

Oncoldmilkfrothpreparation

Bluebacklighton

Failure/malfunction(e.g.overheatingbecauseofburntmilk,toolessornomilk)

Blinkingredbacklight(1Hz,0.5son,0.5soff)

Failure:milkfrotherhaswrongmainsvoltagerange

Fastblinkingredbacklight(2Hz,0.25son,0.25soff


O P E R A T I O N

5.3 Machinemodes

5.3.1 MachinemodesofCitizcoffeemachines

ThistablehelpstounderstandtheoperatingmodesofaCitizcoffeemachine:

Machinemode Entermode Actions Exitmode

1HeatupmodeEverytimeafterswitchingonmachine

Heatsupthermoblocktoreadytemperature90Cwithin60swithoutovershootingtargettemperature

e.g.switchingoffmachine

2SelftestmodeEverytimeafterswitchingonmachine

Tests: NTCshortcircuit NTCconnected Thermoblockheatingcurve

Errorhandling:Trackingofthelast5errorsbyaringbuffer


3Readymode

Afterheatupandselftestmodewasok

Afterbrewingorvolumebrewingcoffee

Afterresetmode Afterleavingdescalingmode

Keepsthermoblocktemperatureat90C


4aBrewingmode4bVolumebrewing

mode(programmingcupsize)

Pressandreleaselargeorsmallcoffeebutton(brewingmode)

Pressandholdlargeorsmallcoffeebuttonformorethan3s(programmingmode)

Pressandreleaselargeorsmallcoffeebuttonwhenmachinewasinbrewingmodeorautomaticexitgivenbytheflowmeter

Releaselargeorsmallcoffeebuttonwhenmachinewasinprogrammingmode

Switchingoffmachine

5Descalingmode

Switchonmachine,waituntilready

Pressandholdbothcoffeebuttonsforatleast3s

Regulatetemperatureto65C(afterpumpwasstarted)

Stopandstartpumpwithanycoffeebutton,novolumebrewingindescalingmode

Pressandholdbothcoffeebuttonsforatleast0.5s

Note:Whenmachineisswitchedoffduringanydescalingmode,thenitgoestodescalingmodereadystateafternextswitchon.


O P E R A T I O N

5.3.2 MachinemodesofmilkfrotherAERO3

6Emptyingmode(evaporing)

1) Switchoffmachine2) Pressandhold

smallcoffeebutton3) Switchonmachine

1) Startpump2) Stoppumpafter

10 s3) Heatupthermo

blockto105 C(100%power)

4) Switchoffthermoblock

5) Gotostandbymode

Switchoffmachine

7Resettingmode

1) Switchoffmachine2) Pressandhold

largecoffeebutton3) Switchonmachine

Resettheprogrammedlargeandsmallcoffeevolumestofactorysetting

Indicatetheresettingmodefor3s

Factorysettings: smallcup....40ml largecup...110ml

proceedswithselftestmodeautomatically

8Powersavemode

Toenablepowersavemode:1) Switchoffmachine2) Pressandhold

bothcoffeebuttons3) Switchonmachine4) Coffeebutton

LEDsblink5timesalternativelyasconfirmation

Afterthatautomaticallyafter30 minofnonuse

Reducethermoblocktemperature

SwitchLEDindicationtopowersavemode(blinkingalternatelyevery2sec)

Pressanycoffeebuttontoactivatereadymode

Todisablepowersavemode:1) Switchoffmachine2) Pressandhold

bothcoffeebuttons3) Switchonmachine4) Coffeebutton

LEDsblink3timesalternativelyasconfirmation

9Failuremode

Automaticallybyfollowingfailures:a)NTCshortcircuitb)NTCnotconnectedc)Heatuptooslow

MachineindicatesfailurewithcoffeebuttonLEDsaslongasthefailureispresent

Whenfailureisfixed

10StandbymodeAutomaticallyafteremptyingmode

Switchthermoblockoff

SwitchLEDindicationtostandbymode

Switchoffthemachine


1Hotmilk/milkfrothpreparation

Pressstartbuttonbriefly

Startbuttonlightsupred.Milkisheatedandmixed.

Automaticswitchoffafterpreparation

2Coldmilkfrothpreparation

Keepstartbuttonpressedforapprox.2 sec

Startbuttonlightsupblue.Milkismixedonly.

Automaticswitchoffafterpreparation



O P E R A T I O N

5.4 Program/resetfilluplevel

Eachcoffeebuttoncanbeprogrammedwithacoffeevolumeforanindividualcupsize.Theprocedureforprogramming/resettingisthesameforbothcoffeebuttons.

5.4.1 Programmingthefilluplevel

Programmablevolumerange ..........................................................................10750ml

5.4.2 Resettingthefilluplevel

Withthefollowingprocedureallprogrammedfilluplevelswillbesetbacktothisfactorysettings:Coffeebutton"smallcup" ....................................................................................... 40ml

Coffeebutton"largecup"..................................................................................... 110ml

Eachnewprogrammingcyclestartswiththemin.volume

(10 mlafter3sec),regardlessofapreprogrammedcoffeevolume.

1) Preparecoffeeasusual(seeusermanual),butkeepthecoffeebuttonpressedforatleast3secondsinordertostartprogrammingmode.

2) Onlyreleasethebuttonwhenthedesiredfilllevelisreached.

1) Switchoffthecoffeemachine. 2) Pressandholdthe"largecup"button.3) Switchonthecoffeemachine.4) Release"largecup"button.


O P E R A T I O N

5.5 Emptywatersystem

Aftereveryoperation,somewaterremainsinthecoffeemachine.Thereforethewatersystemmustbeemptied ifthecoffeemachinewillnotbeusedforalongtime asantifreezemeasure forrepairsandshipment.

1) Switchoffcoffeemachine. 2) Removewatertank.3) Placeabeakerunderthecoffeeout

let.ModelCitiz&Co:Onlyonecoreunitshouldbeemptiedat

thesametime(dangerofmainssupplyoverload).

Afterthisprocedure,thecoffeemachinewillnotbereadyfor

approx.10min(untilthethermoblockcoolstobelow100 C).

4) Pressandholdbutton"smallcup".5) Switchthecoffeemachineonagain.6) Releasebutton"smallcup".

Thepumpstartstodrainthewatersystemandstopsautomatically.

Thecoffeebuttonsblinkfastsimultaneously.

7) Afterautomaticstop,switchoffthecoffeemachine.


M A I N T E N A N C E

6 M A I N TEN A NCE

6.1 Dailymaintenanceandcleaning

6.1.1 BeforefirstcoffeeoratthestartofdayTheCitizmodelisshownasexample.Maintainandclean

othermodelsaccordingly.

1) Fillwatertankwithfreshpotablewater.

2) Insertwatertank.3) FormodelCitiz&milk:

Attachwhisktomilkfrother.Placemilkfrotheronbaseplateconnector.

4) Switchmachineon.

Afteralongerperiodofnonuse:5) Placeacontainerundercoffeeoutlet.

6) Rinsecoffeemachinebypressingbutton"largecup"about6times.



6.1.2 Afterlastcoffeeorattheendofday

Riskoffatalelectricalshockandfire!Nevercleanwetorimmerseplug,cordorapplianceinanyfluid.Unplugapplianceandletitcooldowntoavoidburns.

Platformanddriptraysurfacesarenotabrasionproof.

Neverusebrushesand/orcleaningagentsthatcontainaggressiveorchemicalcomponentsresp.solvents.Donotputanypartinadishwasher.Useonlyadampclothorspongeandamildcleaningagentifnecessary

1) Switchmachineoff.2) Checkifcapsuleisejected.

3) Emptyandcleancapsulecontainer(a)wastewatercontainerwithcupsupport(b)

driptraywithdripgrid(c).Donotuseabrushthewatertankcanbescratched.

4) Empty,rinseandcleanwatertank. 5) Reassemblecoffeemachine.6) Cleancoffeemachinewithadamp

clothifnecessary.



6.1.3 MilkfrotherofmodelCitiz&milk

Riskofdamage!Theinsideofthejugiscoatedforeasycleaning.Neverusebrushesand/orcleaningagentsthatcontainabrasiveoraggressive,chemicalcomponentsresp.solvents.Donotputanypartinadishwasher.Useonlyadampclothandamildcleaningagentifnecessary.

1) Removemilkfrotherfromplatform. 2) Removelidanddismantlewhisk.

Keepconnectors

dry(onplatformand

atundersideofmilk

frother).

3) Removesealfromlid.4) Rinseandcleanmilkfrothertogether

withwhiskormixer,lidandseal.

5) Cleanoutsideofmilkfrotherwithadampclothifnecessary.

6) Reassemblemilkfrother.



6.2 Descaling

Usethischarttoinformacustomerwhentodescalethecoffeemachinedependingonlocalwaterhardnessandaveragecoffeeconsumption.DoubletheestimatedtimeintervalformodelCitiz&Co.

6.2.1 DescalingprocedureformodelsCitizandCitiz&milk

OnlyuseNespressodescalerordescalingkitneverusevinegar!Descalercandamagecasingandcontactsurfaces.Immediatelycleandropsofdescalingsolution.

Thedescalingchartisbasedonacupsizeof40ml.

fH...FrenchgradedH...GermangradeCaCO3...Calciumcarbonate

TheCitizmodelisshownasexample.

1) Ejectcapsuleorcheckifcapsuleisremoved.

2) Removeandemptycapsule/wastewatercontainer,driptrayandwatertank.



Observethesafetyinstructionsonthedescalerpackage.

Useacontainerwithacapacityof1 lmin.

3) Reassemblecoffeemachinewithoutwatertank.

4) Placeacontaineronthecupsupport.

5) Fillthewatertankwith0.1 ldecalcifier(1bag)and0.5 lwater.

6) Insertwatertankintothecoffeemachine.

7) Pressbothcoffeebuttonssimultaneouslyforatleast3 sec.

8) Themachineisindescalingmodenow(bothbuttonsblinkingfast).



Danger!Hotsplashesofdescalingsolution.

Donotopenhandleduringdescalingprocess.

9) Pressanybuttontostartpump.Lettheentiresolutioninthetankrunthroughthesystem.

10) Afterwatertankisempty,pourdescalingsolutionbackintowatertank.

11)Placeemptycontainerbackoncupsupport.

12) Descaleagain:pressanybuttonandwaituntilwatertankisempty.



Dangerofinjury!Residualdescalermaybeharmful.

Rinsethoroughlytoremoveanyresidue.

13) Emptycontainerandputitbackoncupsupport.

14) Rinseandcleanwatertankthoroughlyandfillitwithfreshpotablewater.

15) Rinsecoffeemachinebypressinganybuttonandwaituntilwatertankisempty.

16) Pressbothcoffeebuttonssimultaneouslyforatleast3 sectoenddescalingmode.

17) Removeandemptycontainer.

18) Switchoffcoffeemachine.19) Emptyandcleancapsule/wastewater

containeranddriptray.20) Cleancoffeemachinewithadamp

clothifnecessary.



6.2.2 DescalingprocedureformodelCitiz&Co

1) Ejectcapsulesorcheckifcapsulesareremoved.

2) Removeandemptycapsule/wastewatercontainers,driptrayandwatertank.

Observethesafetyinstructionsonthedescalerpackage.

Usecontainerswithacapacityof1 lmin.

3) Reassemblecoffeemachinewithoutwatertank.

4) Placeacontainerundereachcoffeeoutlet.

5) Fillthewatertankwith0.2 ldecalcifier(2bags)and1.0 lwater.

6) Insertwatertankintothecoffeemachine.



7) Pressbothcoffeebuttonssimultaneouslyforatleast3 sec.onfirstcoreunit.

8) Repeatprocedurewithsecondcoreunit.

9) Themachineisindescalingmodenow(bothcoffeebuttonsblinkingfastoncoreunits).

Dangerofinjury!Hotsplashesofdescalingsolution.

Donotopenhandlesduringdescalingprocess.

10)Pressanybuttononacoreunittostartpumps.Lettheentiresolutioninthetankrunthroughthesystem.

11) Afterwatertankisempty,pourdescalingsolutionfrombothcontainersbackintowatertank.



12)Placeemptycontainersbackoncupsupports.

13) Descaleagain:pressanybuttononacoreunitandwaituntilwatertankisempty.

14)Emptycontainersandputthembackoncupsupports.

15)Rinseandcleanwatertankthoroughlyandfillitwithfreshpotablewater.

16)Rinsecoffeemachinebypressinganybuttononfirstcoreunit.

17) Repeatprocedureonsecondcoreunitandwaituntilwatertankisempty.



18) Pressbothcoffeebuttonssimultaneouslyforatleast3 sectoenddescalingmode.

19) Repeatprocedureonsecondcoreunittoenddescalingmode.

20) Removeandemptycontainers.

21) Switchoffcoffeemachine.22) Emptyandcleancapsule/wastewater

containersanddriptray.23) Cleancoffeemachinewithadamp

clothifnecessary.


T R O U B L E S H O O T I N G

7 T ROUB L E SHOOT I NG

7.1 Checklistforcoffeemachine(allmodels)

Afteraninitialinspectioninaccordancewiththischecklist,

errorsarequicklyfoundandcorrectedwiththeappropriatemeasure.Therefore,adheretothesequenceofthechecklist.Repaireveryoccurringerrorandworkthechecklistthroughuntilitiscompleted.

Check Errorsymptoms Measure/repairwork

Furthermeasures/repairwork

1Checkthecoffeemachineforvisibledamage

1.1Housingpartsbrokenordamaged

YESreplacehousingpartsifnecessaryNOcontinue

1.2Powercorddamaged

YESreplacepowercordNOconnectpowercordofmachinetothemainsandcontinue

2Checkmechanicalcomponents

2.1Cupsupportdoesnotremaininverticalposition

YEScheckifthecapsuleandwastewatercontainerarecorrectlyinsertedandmountedNOcontinue

YESreplacedamagedordeformedcapsulecontainerand/orwastewatercontainer.

2.2Cupsupportrattleswhenfoldeddown

YEScheckif2rubberstoppersaremountedonwastewatercontainerNOcontinue

NOreplacestoppers

2.3Closinghandlemalfunction

YESitisverydifficultoralmostimpossibletoclosethehandleandtopressitallthewaydownNOcontinue

YESreplacethecompactbrewingunit

2.4Closinghandleunusualnoiseduringactuation

YEScheckifdamperismountedunderneathclosinghandleNOcontinue

NOreplacedamper

2.5Capsuleisnotejectedcorrectly

YESreplacebrewingunit(TMBU)NOcontinue

2.6Sealoncapsulecageisdamaged(checksealwithyourfinger)

YESreplacebrewingunit(TMBU)NOcontinue

3Fillwatertank 3.1WatertankleaksYESreplacewatertankNOcontinue

4ActivateOn/Offswitchtoperformautomaticselftest

4.1Coffeemachineisnotworking(doesnotfunction)

a)YESpowercordisokay(looseconnection)

YEScontinueNOreplacepowercord

b)YESOn/Offswitchisokay YEScontinueNOreplaceOn/Offswitch

c)YESpumpworks(pressacoffeebutton)

YEScontinuewithpointf)NOcontinuewithpointd)

d)YESbothcoffeebuttonsareworking

YEScontinueNOreplaceelectroniccontrolboard

e)YESthermostatonpumpisdefective

YESreplacethermostatNOreplacepump

f)YESfinewirefuse(s)(167C)onthermoblockdefective

YESreplaceelectroniccontrolboard,ifnecessaryreplacethermoblockNOcontinue

g)YESwiringisokayNOcontinuewithpoint4.3

YESreplaceelectroniccontrolboardNOreplacedefectivecables

4.2Bothcoffeebuttonsareblinking3xfast

YESthermoblockishotNOselftestokcontinue

YESreplaceNTCtemperaturesensorNOreplacethermoblock



5Measurecoffeetemperatureduringpreparation(seepage136)

5.1Nocoffee

YESa)watersystemisemptyYESreplaceselfprimingdevice(APD)NOcontinue

YESb)flowmeterblocked YEScleanorreplaceNOcontinue

YESc)pyramideplateblocked

YESreplacethecompactbrewingunitNOcontinue

YESd)coffeemachineiscalcifiedNOcontinue

YESdescalecoffeemachine(seepage41)

5.2Temperatureistoolow(below83C)

YESdescalecoffeemachine(seepage41)NOcontinue

5.3Temperaturetoohigh(over89C)

YESreplaceNTCtemperaturesensorNOcontinue

6Checkforleakage(seepage133)andmeasureflowrate(seepage132)

6.1Compactbrewingunitleaks

YESreplacecompactbrewingunitNOcontinue

6.2Hoseconnectionsleak

YESreplacedefectivehosesandsealsNOcontinue

6.3Rateofflownotinthestandardrange

YEScoffeemachineiscalcifiedNOcontinuewithpoint9

YESdescalecoffeemachine(seepage41)NOreplacepump

7Descalecoffeemachine(ifnecessary)

7.1Coffeemachineiscalcified

YESdescalecoffeemachine(seepage41)NOcontinuewithpoint9

8Checkwatertankcontentsafterdescalingandrinising

8.1Particlesofcalciumandrustvisibleinwater

YESdescaleandrinsecoffeemachineagaintocleanwatercircuit(seepage41)NOcontinue

YESinformcustomertodescalecoffeemachineperiodicallyandtousespecifieddescalingproductonly.

9Finalcleaning(seepage38)

Noerrorsfoundaccordingtochecklist?

YESformoreinformationpleasecontactNespressoServiceDivision

Endofchecklist

Check ErrorsymptomsMeasure/repairwork




7.2 Checklistformilkfrother

ThemilkfrotherispartoftheCitiz&milkmodel.

Check Errorsymptoms Measure/repairwork


1Checkmilkfrotherandaccessoryforvisibledamage

1.1Lid/sealbrokenordamaged

YESreplacelid/sealNOcontinue

1.2Insidecoatingofjugbadlyscratched

YESreplacemilkfrotherinagreementwithcustomerNOcontinue

YESinformcustomerhowtocleanmilkfrother

1.3Whisksbrokenordamaged

YESreplacewhisksNOcontinue

4Placemilkfrotheronplatformconnector.Attachwhisk.Switchoncoffeemachine.Pressstartbuttonbriefly(hotmilkpreparation).

4.1Milkfrotherisnotworking(doesnotfunction)

YESa)coffeemachineisheatingup

YEScontinueNOcontinuewithchecklistforcoffeemachine

YESb)connectoronplatformisok(testitwithanothermilkfrother)

YESreplacemilkfrotherNOreplaceconnectoronplatform(see page73)

4.2Abnormalnoiseduringpreparation

YESreplacemilkfrotherNOcontinue

4.3Milkfrotherdoesnotswitchoffautomatically


4.4Insideofjugstayscold


5Pressstartbuttonforatleast2sec(coldmilkpreparation)

5.1Startbuttonisnotbacklightedinblue

YESreplacemilkfrother

6Finalcleaning(seepage40)

Noerrorsfoundaccordingtochecklist?

YESformoreinformationpleasecontactNespressoServiceDivision

Endofchecklist


R E P A I R S

8 R E P A I R S

Theserepairinstructions arebasedonexplodeddrawingswithpositionnumberscombinedwithrepairand

mountingtips, presupposebasicknowledgeinrepairingNespressocoffeemachines.

Asarule,identicalcomponents(e.g.pumps,thermoblocksetc.)arepresentedindetailonlyonce.

8.1 Safetyinstructions

8.2 Repairandmountingtips

Thesegeneraladvicesarecompletedwithspecificrepairtipsinthischapter.

Additionalinformation

Forcomponentsnotmentionedinthisrepairchapter,refertothechapters"ExplosionDrawings"onpage148and"PartsList"onpage154.

Snapconnections

Partsofthecaseandcomponentsofthecoffeemachineareconnectedscrewlesswithlatches.

Whenlooseningtheselatches,proceedwithcareandpatiencetoavoidcausinganydamage.

Thesidepanelsofthecoreunithavedelicatesnapconnectionsthatcanbrakeeasily.

Whenremovingthesesidepanels,usethespecialdisassemblytoolandprocceedaccordingtothedisassemblyinstructions.

Screwconnections

Donotovertightenscrews.Plasticthreadsandinsertsaredelicate.Observemax.torqueforthescrewconnectionsaccordingtothefollowingtable.

Riskoffatalelectricalshock!Mainsvoltageinsidethecoffeemachine.Disconnectthemainsplugbeforedisassemblythecoffeemachinemustbefreeofvoltage.

Dangerofburns!Hotpartsandwaterunderpressureinsidethecoffeemachine(thermoblockinparticular).Letcoffeemachinecooldownbeforedisassembly.


R E P A I R S

Screw/screwconnection Torque Position

Screwwithovalshapedhead50(+30/0)Ncm0.5(+0.3/0)Nm

Bottomofplatform

TX10screw(4x)/brewingunit(TMBU)

50(+30/0)Ncm0.5(+0.3/0)Nm

TX10screw/thermoblocksupport(central)

150(+30/0)Ncm1.5(+0.3/0)Nm

NTCfixationonthermoblock80100Ncm0.81.0Nm

TX20screw(2x)/thermofusefixationsonthermoblock

150(+30/0)Ncm1.5(+0.3/0)Nm


R E P A I R S

Designationofspareparts

Thecomponentsinthefollowingillustrationsareindexedwithpositionnumbers.Seeseparatesparepartslistforcorrespondingsparepartnumbers.

Distinguishbetweensparepartsofthedifferentmodelsandcoreunitversions.

Electrostaticdischargeprotection

Wheninstallinganewelectroniccontrolboard,theservicetechnicianmustbeearthedwithagroundingband.

Wiringarrangement

Randomchangesinthewiringarrangementduringarepaircancause electromagneticinterferences, squeezedwires, insulationdefectsduetocontactwithhotparts, insulationproblemsiflowandhighvoltagewiresarenotseparated.

Protectivemeasures: Donotchangethecourseofinternalwiringduringrepair.

Makesurethatwiresaredistantfromhotpartsuseexistingcableductsandclips.

Residualwater

Ifitisnecessarytopulloffhosesfromcomponents,holdreadyasmallbeakerandatoweltocollectandwipeawayleakingwater.

Aspecialprocedureisnecessarytoemptythefluidsystemofthecoffeemachineforrepairorshipment(referto"Emptywatersystem"onpage37).

TX20screw/groundconnection(PE)onthermoblock

150(+30/0)Ncm1.5(+0.3/0)Nm

Screw/screwconnection Torque Position


R E P A I R S

8.3 Toolsandaccessories

Withthefollowingassortmentoftools,allrepairsdescribedcanbemade:

Adynamometricscrewdriverwithsuitablebitsisrecom

mended.

1) Specialscrewdriverwithshortovalbit(EFRno.0004872)

2) Shortovalbitonly(EFRno.0004878)

3) Disassemblytool(forsidepanelsetc.)(EFRno.0060611)

4) Repairing/serviceholderdeviceformodelsCitizandCitiz&milk(availablefromNespresso)

5) Repairing/serviceholderdeviceformodelCitiz&Co(availablefromNespresso)

6) TORXscrewdriver(TX10,TX15)7) Screwdriverwithapprox.4mmtooltip8) HexagonalwrenchSW49) FlatwrenchSW14,10mmAF10)Torquewrench11)Longnosedpliers12)Flatpliers13)Beakerandtoweltocatchandwipe

awayleakingwater


R E P A I R S

8.4 PlatformdisassemblymodelCitiz

8.4.1 Generaldisassembly

Thisgeneraldisassembly isnecessarybeforetheremoval/disassemblyofacoreunitispossible, givesaccesstothecomponentsandwiringoftheplatform.

Takeawayallremovablepartsfromplatformandcoreunitcupsupport(8)withwastewatercontainer(6)capsulecontainer(7)driptray(46)withdripgrid(49)watertank(44)withcover(45).


R E P A I R S

Loosen2screws(41,ovalshapedhead)atthebottomsideofplatform.

Usescrewdrivertoreleaselatches.Startbyinsertingthesrewdriverintheopeningforthepowercord.

Removebottomcover(51)byswingingituplikeshown.

Thebottomcover(51)isinsertedintotheplatformwithboth

edgesofitssmallend.Onlyremovebottomcoverbyswinginguptheroundend.


R E P A I R S

Assemblycheckpoints

Checkif2rubberstoppersaremountedonwastewatercontainer(6).

Insertbottomcover(51)withsmallendintoplatformatfirst.Thenfolditdownandcloselatches.

Takecarenottojamanywiresatthescrewconnections.


R E P A I R S

8.4.2 Replacingwatertankconnector

Pulloffbothhosesfromwatertankconnector(53).

Releasethe3latchesaroundthewatertankconnectoroneaftertheotherbypressingthetopoftheirhooksoutwardswithascrewdriver(seedetail)andliftingthewatertankconnectoratthesametime.

Removegasket(a)fromwatertankconnector(53).

Withthehelpofapairoftweezers,removeclampingring(b)andmetalsieve(c).

Cleanorreplaceparts.

Thewatertankconnector(53)isreplacedtogether

withgasket,clampingringandmetalsieve.


R E P A I R S

Assemblycheckpoints

Checkthatgasketisinsertedinwatertankconnector(53)correctly.

Duringassemblyofthewatertankconnectorontheplatform,eachofits3latcheshastoengagewithanaudibleclick.

Mindthedifferentdiametersofhosesforthewatertankconnector.

8.4.3 Replacingmainsswitch

Removewatertankconnectorfromplatformfirst(seepage59).

Removebothinsulatedfastonreceptaclesfrommainsswitch(54).

Pressbladeofscrewdriverbetweenholderofmainsswitchandplatformcarefully.Liftholderwithscrewdriverslightly.Thenpressholderwithmainsswitch(54)inwardsuntilitcanberemoved.

Thehosescanremainonthewatertankconnector.

Useapairofflatplierstopulloffinsulatingsleevewithrecep

tacle.


R E P A I R S

Assemblycheckpoints

Usemarkedcableguidetolaywires.

Themainsswitchholder(54)hasanotch:correctfittingpositioniswithmainsswitchconnectionsnexttotheplatform(seedetail).

Duringassemblyofthewatertankconnector(53)ontheplatform,eachofits3latcheshastoengagewithanaudibleclick.


R E P A I R S

8.4.4 Replacingpowercord

Removewatertankconnectorfromplatformfirst(seepage59).

Removeinsulatedfastonreceptacleofphasewirefrommainsswitch(54).

Disconnectadapterplugofneutralwire(15).

Ifpresent,disconnectgroundwire(15,seedetail).

Unlatchcablebracket(56)withscrewdriver.



tacle.

Theflatreceptacleonthegroundwirehasaspecialconnector

latching(seedetail).Pressdownleveratfirst,thenpulloffreceptacle.

Thecablebracketisundertension.Therefore,holdthecable

bracketwithyourfingerwhenunlatchingit.


R E P A I R S

Assemblycheckpoints

Wiringwiththreecorepowercord: Wiringwithtwocorepowercord:

Usemarkedcableguidestolaywires.

Checkwiring(see"WiringdiagramsmodelCitiz"onpage118andfollowing).

Duringassemblyofthewatertankconnector(53)ontheplatform,eachofits3 latcheshastoengagewithanaudibleclick.


R E P A I R S

8.4.5 Removingcoreunit

Payattentiontothefollowingsafetyadvicebeforeremovingthecoreunit.

Dangerofinsulationdamages(cuts)onwiresbetweencoreunitandplatform(phaseandneutralwire,groundwireifexisting).

Thesharpcasingedgesoftheplatform(markedredinaboveillustration)candamagetheinsulationofwires.

Donotstretchandreciprocatewiresoversharpedgeswhileremovingthecoreunit.


R E P A I R S


Forcompleteremovalofthecoreunitproceedasfollows: Removewatertankconnector(53)fromplatform(seepage59).

Removeinsulatedfastonreceptacleofphasewire(15)frommainsswitch(54).

Disconnectadapterplug(15)ofneutralwire.

Ifpresent,disconnectgroundwire(15,partofthermoblockassembly).

Afterthisrepairstepthecoreunitcanbepulledoutoftheplat

formslightly(withstillconnectedhosesandwires).Nowthecoversofthecoreunitcanberemoved.


Useapairofflatplierstopulloffinsulatingsleevewithreceptacle.




R E P A I R S

Assemblycheckpoints

Allcoversareassembledonthecoreunit.

Checkthatwiringbetweencoreunitandplatformisledthroughcablefixation(71).

Usemarkedcableguidestolaywiresinplatform(referto"Replacingpowercord"onpage62andfollowing).

Checkwiring(see"WiringdiagramsmodelCitiz"onpage118andfollowing).



R E P A I R S

8.5 PlatformdisassemblymodelCitiz&milk


Thisgeneraldisassembly isnecessarybeforetheremoval/disassemblyofacoreunitispossible, givesaccesstothecomponentsandwiringoftheplatform.

Takeawayallremovablepartsfromplatformandcoreunitcupsupport(8)withwastewatercontainer(6)capsulecontainer(7)driptray(48)withdripgrid(49)watertank(44)withcover(45)milkfrother(59)withlidandseal(62)cupstorage(58)whiskforhotmilk(60)springwhiskformilkfoam(61).


R E P A I R S

Atthebottomsideofplatformloosen4screws(41,ovalshapedhead).


R E P A I R S

Insertscrewdriverintorecessesandswivelscrewdrivertoremovebottomcover(51).

Latchesonthebottomcover(51)areredcircledforeasy

identification.


R E P A I R S

Assemblycheckpoints

Checkif2rubberstoppersaremountedonwastewatercontainer(6).

Riskofdamage!Whileassemblingtheprotectivecoverattheplatform,takecarenottojamanywiresatthescrewconnections.


R E P A I R S


Pulloffbothhosesfromwatertankconnector(53).

Releasethe3latchesaroundthewatertankconnectoroneaftertheotherbypressingthetopoftheirhooksoutwardswithascrewdriver(seedetail)andliftingthewatertankconnectoratthesametime.

Thewatertankconnector(53)isreplacedtogetherwithgasket,

clampingringandmetalsieve.


R E P A I R S

1. Removegasket(a)fromwatertankconnector(53).2. Withthehelpofapairoftweezers,removeclampingring(b)andmetalsieve(c).3. Cleanorreplaceparts.

Assemblycheckpoints

Checkthatgasketisinsertedinwatertankconnector(53)correctly.

Duringassemblyofthewatertankconnectorontheplatform,eachofits3latcheshastoengagewithanaudibleclick.

Mindthedifferentdiametersofhosesforthewatertankconnector.


R E P A I R S

8.5.3 Replacingmilkfrotherconnector

Remove3smallfastonreceptaclesfrommilkfrotherconnector(57).

Removemilkfrotherconnector(57)byreleasing2latchesandswivelconnectoroutfromunderthehook.

Assemblycheckpoints


Checkwiringofmilkfrotherconnector(57),seedetail.


R E P A I R S


Remove4insulatedfastonreceptaclesfrommainsswitch(54).

Pressbladeofscrewdriverbetweenholderofmainsswitchandplatformcarefully.Liftholderwithscrewdriverslightly.Thenpressholderwithmainsswitch(54)inwardstillitcanberemoved.

Assemblycheckpoints

Themainsswitchholder(54)hasanotch(seedetail)toensureacorrectfittingposition.


Checkwiringofmainsswitch(see"WiringdiagramsmodelCitiz&milk,EF 485/486"onpage124andfollowing).

Useapairofflatplierstopulloffinsulatingsleeveswith

receptacles.


R E P A I R S


Remove2insulatedfastonreceptacles(55)frommainsswitch(54).




tacle.

Thecounterpart,aflatreceptacle,hasaspecialconnector





R E P A I R S

Assemblycheckpoints


Checkwiringofpowercord(see"WiringdiagramsmodelCitiz&milk,EF 485/486"onpage124andfollowing).


R E P A I R S

8.5.6 Removingcoreunit

Payattentiontothefollowingsafetyadvicebeforeremovingthecoreunit.

Dangerofinsulationdamages(cuts)onwiresbetweencoreunitandplatform(phaseandneutralwire,groundwireifexisting).

Thesharpcasingedgesoftheplatform(markedredinaboveillustration)candamagetheinsulationofwires.

Donotstretchandreciprocatewiresoversharpedgeswhileremovingthecoreunit.


R E P A I R S


Forcompleteremovalofthecoreunitproceedasfollows:

Removebottomcover(refertopage56).

Removebothinsulatedfastonreceptacles(15,partofthermoblockassembly)frommainsswitch(54).

Afterthisrepairstepthecoreunitcanbepulledoutoftheplat

formslightly(withstillconnectedhosesandwires).Nowthecoversofthecoreunitcanberemoved.


tacle.


R E P A I R S


Ifthethermoblockorcoreunithastobereplaced,disconnectmilkfrotherconnector(57).Otherwisethecoreunitcanberemovedtogetherwiththisconnector(seepage73).

Removewatertankconnector(53,seepage71).

Assemblycheckpoints


Checkthatwiringbetweencoreunitandplatformisledthroughcablefixation(71).


Checkwiringofmilkfrotherconnector(57),seedetail.

Checkwiringofmainsswitch(54),see"WiringdiagramsmodelCitiz&milk,EF 485/486"onpage124andfollowing.





R E P A I R S

8.6 PlatformdisassemblymodelCitiz&Co


Thisgeneraldisassembly isnecessarybeforetheremoval/disassemblyofoneorbothcoreunitsispossible, givesaccesstothecomponentsandwiringoftheplatform.

Takeawayallremovablepartsfromplatformandcoreunitscupsupports(8)withwastewatercontainers(6)capsulecontainers(7)driptray(48)withdripgrid(49)watertank(44)withcover(45).


R E P A I R S

Atthebottomsideofplatformloosen9screws(41,ovalshapedhead). Thecoreunitsarefastenedwithsomeofthesescrewsaswell.

Supportbothcoreunitssothattheirremainingscrewconnectiontotheplatformcannotbedamaged.


R E P A I R S

Ifnecessaryuseascrewdrivertoremoveprotectivecover(51).


R E P A I R S

Assemblycheckpoints

Checkif2rubberstoppersaremountedoneachwastewatercontainer(6).

Riskofdamage!Whileassemblingtheprotectivecoverattheplatform,takecarenottojamanywiresatthescrewconnections.


R E P A I R S


Pulloffbothhoses(63,64)fromwatertankconnector(53).

Releasethe3latchesoneaftertheotherbypressingthetopoftheirhooksoutwardswithascrewdriver(seedetail)andliftingthewatertankconnectoratthesametime.

Removegasket(a)fromwatertankconnector(53).

Withthehelpofapairoftweezers,removeclampingring(b)andmetalsieve(c).

Cleanorreplaceparts.

Thewatertankconnector(53)isreplacedtogetherwithgasket,

clampingringandmetalsieve.


R E P A I R S

Assemblycheckpoints


Insertgasketcorrectly(seedetail).


Remove2insulatedfastonreceptaclesfrommainsswitch(54).

Pressbladeofscrewdriverbetweenholderofmainsswitchandplatformcarefully.Liftholderwithscrewdriverslightly.Thenpressholderwithmainsswitch(54)inwardstillitcanberemoved.

Useapairofflatplierstopulloffinsulatingsleeveswith

receptacles.


R E P A I R S

Assemblycheckpoints


Themainsswitchholder(54)hasanotch:correctfittingpositioniswithmainsswitchconnectionsnexttotheplatform(seedetail).


R E P A I R S


Removeinsulatedfastonreceptacleofphasewire(55)frommainsswitch(54).

Disconnectbothinsulatedadapterplugsofneutralwire(55).

Ifagroundwireispresent,disconnectbothflatreceptacles(15).


Useapairofflatplierstopulloffinsulatingsleevewithreceptacle.

Theflatreceptaclesofthegroundwireconnections(15)

haveaspecialconnectorlatching(seedetail).Pressdownleveratfirst,thenpulloffreceptacle.




R E P A I R S

Assemblycheckpoints


Checkwiringofpowercord(see"WiringdiagramsmodelCitiz&Co,EF487/488"onpage128andfollowing).


R E P A I R S

8.6.5 Removingcoreunits

Foreachcoreunitloosen1remainingscrew(41,ovalshapedhead)atthebottomsideofplatform.

Forcompleteremovalofacoreunitproceedasfollows:4. Disconnect2insulatedadapterplugs(15,phaseandneutralwire).5. Ifagroundwire(15,partofthermoblock)ispresent,disconnectflatreceptacle.6. Openprotectivecase(69)withscrewdriveranddisconnectconnectioncable(b).7. Pulloutcoreunitfromplatformslightlytodisconnectsynchronizationcableplug(a)

fromelectroniccontrolboard.8. PulloffbothhosesfromangledHconnector(65).9. Liftcoreunitoutofplatform.

Bothcoreunitscanberemovedthesameway.

Afterthefirstrepairstepthecoreunitcanbepulledoutofthe

platformslightly(withstillconnectedhosesandwires).Nowthecoversofthecoreunitcanberemoved.




R E P A I R S

Assemblycheckpoints



Checkwiring(see"WiringdiagramsmodelCitiz&Co,EF487/488"onpage128andfollowing).

Makesuretoreconnectsynchronizationcableplugs(a)onelectroniccontrolboards.

MindthehosepositionsonangledHconnector(65).

Checkthatwiringbetweencoreunitsandplatformisledthroughcablefixations(71).


R E P A I R S

8.7 Disassemblyofcoreunit,Crange


Thecoreunithastoberemovedfromtheplatformatfirst(seeaccordingchapter"platformdisassembly").Itispossibletoperformageneraldisassemblyofthecoreunitwithintacthoseandwireconnectionstotheplatform(e.g.forrepair,leakagecheck).

Removeleftsidepanel

1. Insertdisassemblytoolbetweenbottomofleftsidepanel(3)andchassis(1).2. Swiveldisassemblytooltilllatchopensatthebottom.

3. Insertdisassemblytoolintolowergapatthefront.4. Carefullyturndisassemblytoolslightlytotherighttoopenthelatch.

Aftergeneraldisassemblyofthecoreunitarepairing/

serviceholderdeviceishelpfulforfurtherrepairwork.


R E P A I R S

5. Insertdisassemblytoollaterallyintothegapabove.6. Carefullyturndisassemblytoolslightlyforwardtoopenthenextlatch.7. Movedisassemblytoolupwardsandopenremaininglatchthesameway.

8. Atthebackinsertdisassemblytoolintoshadowgapofleftsidepanel.9. Swiveldisassemblytoolcarefullytoopenfirstlatch.10. Movedisassemblytoolupwardsandopentheothertwolatchesthesameway.

Insertdisassemblytoolatrightanglesonly.Otherwisethe

shadowgapcanbedamaged.


R E P A I R S

11. Swingupandremoveleftsidepanel.

Removerightsidepanel

Removetherightsidepanel(4)inthesamesequenceasfortheleftsidepanel(3).

Removeblind

1. Open2latchesoneachsideofblind(9)withscrewdriver.2. Removeblindtogetherwithcoffeebuttonsandwiring.


R E P A I R S

Removecover

1. Useascrewdrivertorelease2latchesoneachside.2. Liftandremovecover(2).

Removefrontcoverwithoutlet

1. Release3latchesonfrontcoverbyhandandpressoutoutlet(5,seedetail).


R E P A I R S

Assemblycheckpoints

Foreasyidentification,thesidepanelsaremarkedwith"RIGHT"or"LEFT"ontheinside.

Checkifdamper(10)forclosinghandleisinstalledoncover(2).

Checkthatallconnectionwirestotheplatformareledthroughcablefixation(71).


R E P A I R S

8.7.2 Replacingcompactbrewingunit

Useapairofpointedplierstoremoveconnectorclip(34)andhose(29)withOring(36).

UseTorxscrewdriverTX10toloosen4screws(40).

Afterremovalofcompactbrewingunit(14),release2latcheswithscrewdriverandremovesteamcover(13).

Openclosinghandletogetaccesstohoseconnection.


R E P A I R S

Assemblycheckpoints

Atfirstassemblesteamcover(13)onnewcompactbrewingunit(14)asshown.

ReplaceOring(36)ofhoseconnectiononcompactbrewingunit.


R E P A I R S

8.7.3 Replacingpump

General

Thepump(18)canonlybereplacedasassemblyconsistingof pump,prewiredwiththermostat(19,seebelow)orthermalcutofffuse(a) 2pumpsupports(21,22) pumpcover(25).

Ablownthermalcutofffuse(a)hastobereplacedtogetherwiththepumpassembly.Atrippedthermostat(19)resetsafterabout30minautomatically.

Thepumpisequippedeitherwithathermalcutofffuse

orathermostatdependingonthevoltagerangeormanufacturer.

a) Thermalcutofffuse 19)Thermostatwithretainingclip


R E P A I R S

Replacingpumpassembly

Removebothhoses(28,32)frompump.Useapairofpointedplierstoremoveconnectorclip(35)withOring(36).

Removecover(43)fromelectroniccontrolboardanddisconnect2fastonreceptaclesofpumpwires.

Pulloutsupports(21,22)togetherwithcompletepumpassembly.


R E P A I R S

Assemblycheckpoints

Adjustpositionofpumpconnector(23)towardshose(28)ifnecessary.

Checkconditionofsupports(21,22).Replacebrittlesupports.

Passhose(28)frompumptoselfprimingdevicethroughlugonpumpcover(25).

Useacableclamp(a)tofixpumpwires(differentlocationdependingonthermofuse/thermostat).

ThewhiteplasticIidonthepumpisrotatableandhasasquare

seatfortheforkwrench.


R E P A I R S

8.7.4 Replacingflowmeter

Assemblycheckpoint

Layconnectioncabletoflowmeter(27)inbracket.

Mindthehosepositionsontheflowmeter.


R E P A I R S

8.7.5 Replacingautomaticprimingdevice(APD)

Useapairofpointedplierstoremoveconnectorclips(34,35)fromautomaticprimingdevice(26).


R E P A I R S

Assemblycheckpoints

ReplacebothOrings(36)togetherwithautomaticprimingdevice(26).

Inserthose(28)intubeguiding(30).


R E P A I R S

8.7.6 ReplacingthermoblockwithNTCsensorandfinewirefuse(s)

Adefectthermoblockcanonlybereplacedwithanassemblyconsistingof thermoblock,prewiredwithNTCtemperaturesensor,finewirefuse(s)andground

wire(onlyifrequired), thermoblocksupport.

UseTorxscrewdriverTX10toloosenscrew(40).

Release3latchesandpulloutsupportwiththermoblockassembly(15).

Dependingonnationalregulations,oneortwofinewire

fusesaremountedonthethermoblock(seeWiringdiagramsonpage 118andfollowing).

DonotstressNTCcablewhenremovingsupport.


R E P A I R S

ReplacingNTCtemperaturesensor

UnplugNTCsensorcablefromelectriccontrolboard(42)first.

TestNTCtemperaturesensor(39),seeNTCtemperaturesensorfunctionalityonpage 139.

AssemblycheckpointNTCtemperaturesensor

TightenthenewNTCtemperaturesensor(39)andspringringwithatorquewrench(80100Ncm).

Replacingfinewirefuse(s)


R E P A I R S

Assemblycheckpointsfinewirefuse(s)

Whenmountingasafetyclip(a)onthethermoblock(15),makesurethatthehousingofthefinewirefuse(b)ispositionedexactlybelowthesafetyclip.

Tightenfasteningscrewandspringringwithatorquewrench(150(+30/0)Ncm).

Assemblycheckpointsthermoblock

Allwiresfromthermoblocktoplatformmustbeledthroughthebracket(a)atthebottomofthesupport.

Theblackgrommets(b)ontheelectricalthermoblockconnectionsareslittedattheend.IfanangledFastonreceptacle(c)isused,makesurethatitswirerunsthroughthisslit.

Tightencentralfasteningscrew(d)withatorquewrench(150(+30/0)Ncm).


R E P A I R S

8.7.7 Replacingelectroniccontrolboardwithbuttonprints

RemoveatfirstNTCconnectorfromelectroniccontrolboard,connectorcablefromflowmeter,electroniclid(43),fastonreceptaclesfromelectroniccontrolboard.

Inserttipofscrewdriverbetweenchassis(1)andprotectivecaseofelectroniccontrolboard(42)toreleaselatches.Thenpulloutassembly.

Thereplacementboardisequippedwithprotectivehous

ingandcover.


R E P A I R S

Replacingbuttonprints/coffeebuttons

Assemblycheckpoints

Afterassemblychecktheplugarrangementoftheelectroniccontrolboard(seeWiringdiagramsonpage 118andfollowing.

Layconnectionwirestobuttonprintsinbracketsandcableguidelikeshown.

Forinstallingandconnectinganewelectroniccontrol

board,theservicetechnicianmustbeearthedwithagroundingband.


R E P A I R S

8.8 Disassemblyofcoreunit,Drange


Thecoreunithastoberemovedfromtheplatformatfirst(seeaccordingchapter"platformdisassembly").Itispossibletoperformageneraldisassemblyofthecoreunitwithintacthoseandwireconnectionstotheplatform(forrepair,leakagechecketc.).

Removeoutlet

1. Openclosinghandle.2. Pressoutlet(5)sidewardsbyhandcarefully.3. Insertdisassemblytoolintogapbetweenoutletandrightsidepanel(4).

Aftergeneraldisassemblyofthecoreunitarepairing/serv

iceholderdeviceishelpfulforfurtherrepairwork.

Thedisassemblytoolisnecessaryforremovingoutletand

sidepanelsundamaged.


R E P A I R S

4. Holdandpulloutlet.5. Atthesametimemovedisassemblytoolupwards.6. Carefullyturndisassemblytoolslightlybackwardtoopenthelatch.7. Insertdisassemblytoolintogapontheothersideoftheoutlet.8. Movedisassemblytoolupwardsandcarefullyturnitslightlybackwardtoopenthe

latch.9. Removeoutlet.

Removerightsidepanel

10. Insertdisassemblytoolbetweenbottomofrightsidepanel(4)andchassis.11. Swiveldisassemblytooltillsnapconnectionatthefrontopens.12. Relocatedisassemblytoolandrepeatproceduretoopenlatchatthebottomofthe

sidepanel.


R E P A I R S

13. Insertdisassemblytoollaterallyintogapatthefront.14. Carefullyturndisassemblytoolslightlyforwardtoopenthefirstlatch.15. Movedisassemblytoolupwardsandopentheothertwolatchesthesameway.

16. Atthebackinsertdisassemblytoolintoshadowgapofrightsidepanel.17. Swiveldisassemblytoolcarefullytoopenfirstlatch.18. Movedisassemblytoolupwardsandrepeatprocedurefortheother2latches.




R E P A I R S

19. Swingupandremoverightsidepanel.

Removeleftsidepanel

20. Insertdisassemblytoolbetweenbottomofleftsidepanel(3)andchassis.21. Swiveldisassemblytooltilllatchatthefrontopens.22. Relocatedisassemblytoolandrepeatproceduretoopenlatchatthebottomofthe

sidepanel.

Closinghandlemustbeopened.


R E P A I R S

23. Insertdisassemblytoollaterallyintogapatthefront.24. Carefullyturndisassemblytoolslightlyforwardtoopenthefirstlatch.25. Movedisassemblytoolupwardsandopentheothertwolatchesthesameway.

26. Atthebackinsertdisassemblytoolintoshadowgapofleftsidepanel.27. Swiveldisassemblytoolcarefullytoopenfirstlatch.28. Movedisassemblytoolupwardsandrepeatprocedurefortheother2latches.




R E P A I R S

29. Swingupandremoveleftsidepanel.

Removecover(2)

1. Removebothcoffeebuttons(11,12)andprints(42)outofholder.2. Removewiringofcoffeebuttonprintsfromcableguides.

Closinghandleshouldbeopened.


R E P A I R S

3. Useascrewdrivertorelease4latches.4. Openclosinghandle.5. Liftandremovecover(2).

Assemblycheckpoints

Checkifdamper(10)forclosinghandleisinstalledoncover(2).

Forcorrectlayoutofthewirestothecoffeebuttonprints,seeReplacingelectroniccontrolboardwithbuttonprintsonpage 116.

Assembleleftsidepanel(3)first.

Insertrightsidepanel(4)intohingesatthetopoftheleftsidepanel.Thenfolddownrightsidepanelandclicklatches.

Checkthatalllatchesareengaged.


R E P A I R S

8.8.2 Replacingelectroniccontrolboardwithbuttonprints

Refertopage114forremovingcover(2).Thereplacementboard(42)isequippedwithprotec

tivehousingandcover.


R E P A I R S

RemovefirstNTCconnectorfromelectroniccontrolboard,connectorcablefromflowmeter,electroniclid(43),fastonreceptaclesfromelectroniccontrolboard.

Inserttipofscrewdriverbetweenchassis(1)andprotectivecaseofelectroniccontrolboard(42)toreleaselatches.Thenpulloutassembly.

Assemblycheckpoints

Theleftandrightbuttonprints(42)aremarkedwith"L"or"R"foreasyidentification.

Afterassemblychecktheplugarrangementofthemainboard(seeWiringdiagramsonpage 118andfollowing).

Layconnectionwirestobuttonprintsinbracketsandcableguideslikeshown.

Forinstall ingandconnectinganewelectroniccontrol

board,theservicetechnicianmustbeearthedwithagroundingband.


R E P A I R S

8.9 Wiringdiagrams

8.9.1 WiringdiagramsmodelCitiz

Wiringdiagram220V240VIECmodelCitiz,EF483/484


R E P A I R S

Wiringdiagram120VUL(USA/Canada)modelCitiz,EF483/484


R E P A I R S

Wiringdiagram120V127VIEC(Brazil)modelCitiz,EF483/484


R E P A I R S

Wiringdiagram120V127VIEC(Mexico)modelCitiz,EF483/484


R E P A I R S

Wiringdiagram110VIEC(Taiwan)modelCitiz,EF483/484


R E P A I R S

Wiringdiagram100VIEC(Japan)modelCitiz,EF483/484


R E P A I R S

8.9.2 WiringdiagramsmodelCitiz&milk,EF 485/486

Wiringdiagram220V240VIECmodelCitiz&milk,EF 485/486


R E P A I R S

Wiringdiagram120VUL(USA/Canada)modelCitiz&milk,EF 485/486


R E P A I R S

Wiringdiagram120V127VIEC(Brazil)modelCitiz&milk,EF 485/486


R E P A I R S

Wiringdiagram120V127VIEC(Mexico)modelCitiz&milk,EF 485/486


R E P A I R S

8.9.3 WiringdiagramsmodelCitiz&Co,EF487/488

Wiringdiagram220V240VIECcoreunit,modelCitiz&Co,EF487/488


R E P A I R S

Wiringdiagram220V240VIECmodelCitiz&Co,EF487/488


F U N C T I O N T E S T S

9 F UNC T I ON T E S T S

9.1 Safetyinstructions

Somefunctiontestsareperformedwithanenergized,partlyopenedcoffeemachine.

9.2 Requiredequipment

9.2.1 Overview

Tosimplifymatters,themodelCitizwithcoreunit"Crange"is

usedtoexemplifythroughoutthischapter.

Dangerofelectrocution!Mainsvoltageinsidethecoffeemachine.Donottouchanylivepartwhileperformingtests.

Dangerofburns!Hotpartsandwaterunderpressureinsidethecoffeemachine.Donottouchanyhotpartswhilecheckingforleakages!Alwayswearprotectivegoggles.

Symbolicillustrationoffunctiontestequipment.

1) Pressuregauge(EFRno.16195)

2) Citizpressuregaugeadapter3) Digitalmultimeter

(forNTCtemperaturesensortest)

4) Electronicthermometer(ordigitalmultimetersuitablefortemperaturemeasurement)

5) Timer6) Measuringbeaker7) Testequipmentforprotectiveearthcon

tinuitytestandprotectiveinsulationtest



9.2.2 Citizpressuregaugeadapter

ThispressuregaugeadapterisdesignedfortheCitizcoffeemachines.

Thepressuregaugeadapterhas2parts: Aconnectingunit(3)withasealingconethatisinsertedinthecapsulecageofthe

brewingunit.

Ahandactuatedfixationunit(4)tolockandsealthecompletepressuregaugeadapterinthebrewingunit.

1) Quickactioncouplingforpressurehose

2) Operatinglever

3) Connectingunit4) Fixationunit



9.3 Measureflowrate

Thepressureadaptermustsitfirmlyinthecapsulebay.

1) Fillandinsertwatertank.2) Openclosinghandle.

3) Insertconnectingunitofpressureadapterinto

service manual - citiz

Documents

f f e e

c e ma nua lc i t i