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Service Manual EF 470 / EF 471

en

Version 1.1

Preface

The purpose of this Service Manual is to
provide the service personnel with all
necessary information with regards to correct
handling, maintenance and repair of the coffee
machines EF 470 and EF 471.

This manual should be used by the
technicians as a valuable aid to guarantee the
permanent readiness for use of the machine.
In order to take full advantage of all the
functions, it is absolutely necessary to follow
the instructions in this manual.

Please keep this manual together with the
corresponding service documentation. This
way you are assured to have the necessary
information.

For fast access to information directly from the
PC or MAC monitor, this manual is also
available on CD-ROM. The required utility
(Adobe Acrobat), also on this CD-ROM, runs
on PC and MAC computers.

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Содержание Essenza EF 470

Страница 1: ...en Service Manual Coffee Machine EF 470 EF 471 Essenza ...

Страница 2: ...____________________ 17 Replacing pump ____________________ 18 Replacing electronic control board with button prints ________________________ 19 Replacing compact brewing unit CBU _ 20 Electronic control board wiring diagram Europe 230V 50 Hz _______________ 21 Electronic control board wiring diagram USA UL 120 V 60 Hz _____________ 22 Electronic control board wiring diagram Japan 100 V 50 60 Hz _...

Страница 3: ... aid to guarantee the permanent readiness for use of the machine In order to take full advantage of all the functions it is absolutely necessary to follow the instructions in this manual Please keep this manual together with the corresponding service documentation This way you are assured to have the necessary information For fast access to information directly from the PC or MAC monitor this manu...

Страница 4: ...apsule inlet 5 Side panel 6 On Off button 7 Coffee outlet 8 Coffee button back lighted 9 Container for used capsules 10 Drip grid 11 Drip tray 12 Lower chassis 13 Thermoblock TB 2003 14 Electronic control board 15 Pump CP4 SP C2 16 Water tank connector 17 Upper chassis 18 Water tank 1 18 6 2 3 4 7 8 9 10 11 12 13 14 5 15 17 16 ...

Страница 5: ...1 incremental number per production day 8 checksum number Typ MAGIMIX NESPRESSO Turmix MADE IN EUROPE 0042699 1260W 60Hz MADE IN SWITZERLAND 0529 0074 7002 6100 018 FR 6 HOUSEHOLD COFFEE MAKER Type C90 LISTED 39C5 A C only 120V 1260W 50Hz Fabriqué en Suisse 0042728 ref 11238 0529 0064 7105 5100 011 M100 220 240V 0040133 1260W 50Hz MADE IN SWITZERLAND 0529 0044 7105 1100 014 KOENIG Capri 03161 220 ...

Страница 6: ...6 Main Components Service Manual EF 470 EF 471 en Version 1 1 Water circuit 1 Water tank 2 Water tank valve and connector 3 Pump 4 Thermoblock 5 Compact brewing unit CBU 6 Coffee outlet 5 6 4 3 2 1 ...

Страница 7: ...in at 12 bar Capacities Water tank 0 9 l Drip tray approx 100 ml Capsule container 10 14 pcs Power consumption at all voltages and frequencies Thermoblock 1 200 W Pump 60 W Ratings Preheating 8 5 Wh 1 small cup 55 ml 6 5 Wh 1 large cup 110 ml 10 Wh Stand by mode 9 5Wh machine on in 1 hour Stand by mode 0 45Wh machine off in 1 hour Various data Pre heating time approx 50 s Safety temperature therma...

Страница 8: ...achine 3 Switch on machine by pressing the On Off button 4 Position receptacle with a capacity of min 100 ml under coffee outlet Do not insert a capsule yet 5 Wait until machine is ready coffee button is lighted 6 Press coffee button to rinse coffee outlet 7 Press coffee button again when receptacle is filled 1 2 5 3 4 6 7 ...

Страница 9: ...mpty Procedure to fill water system 1 Perform steps 1 to 5 for preparation see page 8 2 Open closing handle in vertical position 3 Press coffee button 4 Press and hold closing handle to rear end position 5 Observe capsule inlet for appearing water 6 Press down closing handle immediately when first droplets are visible 7 Press coffee button again to stop water flow 3 2 6 7 4 5 ...

Страница 10: ...handle 2 Insert capsule 3 Press down closing handle completely 4 Position cup under coffee outlet 5 Press coffee button 6 Press button again to stop coffee flow when cup is full 7 Briefly open closing handle after coffee preparation and eject capsule into capsule container 2 1 6 3 4 5 7 ...

Страница 11: ...mpty water tank 2 Press and hold On Off button 3 Simultaneously press coffee button three times 4 Release On Off button The coffee button starts blinking fast and the pump begins to empty the water system 5 Open closing handle and hold it in opened position 6 After coffee button stops blinking press down closing handle completely 7 Empty drip tray After this procedure the machine is blocked for ap...

Страница 12: ...minutes in brewing mode A detected failure is indicated by the backlighted coffee button as well as the operating modes listed in the following table Operating mode Coffee button LED signal Off off Heat up coffee blinking slow Ready on System too hot blinking fast Brew coffee rinse blinking slow Heat up descaling blinking fast Descaling ready blinking fast Pump on while descaling blinking fast Emp...

Страница 13: ... block them with Loctite 241 see page 20 or replace CBU NO Replace the CBU 2 2 Is the capsule correctly ejected YES Go to point 2 3 NO Replace CBU 2 3 Is the capsule cage seal damaged feel with a finger if the seal is damaged YES Replace CBU NO Go to point 3 3 Fill water tank 3 1 Water tank is leaking YES Replace water tank NO Go to point 4 4 Press On Off button to perform automatic self test 4 1 ...

Страница 14: ... c Machine is blocked by scale YES Descale machine see page 24 NO Go to point 5 2 5 2 Temperature is too low less than 83 C YES Descale the machine see page 24 NO Go to point 5 3 5 3 Temperature is too high more than 89 C YES Change NTC NO Go to point 6 6 Check for leaks and check flow rate see pages 26 27 and 28 6 1 Leakage at extraction system YES Replace CBU NO Go to point 6 2 6 2 Leakage at tu...

Страница 15: ...ne appliance must be isolated Procedure 1 Remove water tank 33 and drip tray 8 together with drip grid 7 and capsule container 6 2 Remove 2 screws 2 on the front side of the machine 3 Place machine on the repairing service holder device see page 31 4 Remove 6 screws 2 on the bottom of the machine 5 Swing out and remove both side panels 5 6 Remove lower chassis 22 5 5 33 7 8 6 2 2 22 2 2 ...

Страница 16: ...e fine wire fuse 900 from thermoblock 5 Remove electronic housing 28 6 Unplug NTC connector from electronic control board 28 7 Remove NTC 43 from thermoblock 8 Remove clips 13 and hose connectors 16 26 from thermoblock 9 Remove ground wire and electrical connections from thermoblock 10 Replace thermoblock and nut M6 11 Assemble in reverse sequence Use a torque wrench 90 110 Ncm to tighten NTC temp...

Страница 17: ...Follow general disassembly see page 15 2 Remove electronic housing 28 3 Unplug NTC connector from electronic control board 28 4 Remove defective NTC temperature sensor 43 from thermoblock 40 and replace it with new one 5 Assemble in reverse sequence Re use spring washer and tighten new NTC temperature sensor 43 with torque wrench 90 110 Ncm 43 28 40 ...

Страница 18: ... 17 first from rubber strap 12 at the side of the angled hose 5 Remove electrical connections from pump 6 Release pump from second rubber strap 12 7 Replace defective pump 17 8 Attach new pump 17 to one rubber strap with corner connector 20 first 9 Plug in electrical connections on pump Check for correct wiring of pump 10 Attach pump to second rubber strap 11 Insert new seal 15 mount hose 18 and c...

Страница 19: ... Procedure 1 Follow general disassembly see page 15 2 Detach prints of On Off button 30 and coffee button 29 from upper chassis 1 3 Remove housing 28 from electronic control board 28 4 Unplug NTC connector and all wires from electronic control board 28 5 Remove 2 screws 23 and replace defect electronic control board with button prints 29 30 6 Assemble in reverse sequence Check for correct wiring o...

Страница 20: ...ng out and remove both side panels 5 5 Remove 2 screws 36 and pull off closing handle 37 6 Remove 2 screws 23 at the front and 1 screw 23 at the back to detach cover 35 7 Unlatch coffee outlet 3 from compact brewing unit 34 with a blade screwdriver 8 Remove 4 screws 23 and detach compact brewing unit 34 9 Remove clip 14 and hose 32 with o ring 15 from compact brewing unit 34 10 Assemble new compac...

Страница 21: ...z 1 Heat sink 2 Print for On Off button 3 Print for coffee button with LED 4 NTC temperature sensor 5 Fine wire fuse on thermoblock 6 Fine wire fuse on pump Electronic Main Board J7 J6 J1 J2 J3 J4 J5 NTC ON OFF Print Coffee Button Print L N PE Thermoblock T 167 C Pump T 128 C Mains Plug GND L L L N 1 6 5 3 2 4 ...

Страница 22: ...am USA UL 120 V 60 Hz 1 Heat sink 2 Print for On Off button 3 Print for coffee button with LED 4 NTC temperature sensor 5 Fine wire fuse on thermoblock Electronic Main Board J7 J6 J1 J2 J3 J4 J5 NTC ON OFF Print Coffee Button Print Thermoblock T 167 C Pump T 128 C Mains Plug L L L N 1 5 4 2 3 ...

Страница 23: ... 60 Hz 1 Heat sink 2 Print for On Off button 3 Print for coffee button with LED 4 NTC temperature sensor 5 Fine wire fuse on thermoblock 6 Fine wire fuse on pump Electronic Main Board J7 J6 J1 J2 J3 J4 J5 NTC ON OFF Print Coffee Button Print L N Thermoblock T 167 C Pump T 128 C Mains Plug L L L N 1 6 5 3 2 4 ...

Страница 24: ...ule container and remove drip grid 4 Re insert drip tray and place a pot on it Carefully read safety instructions on decalcifier package 5 Fill water tank with 0 1 l descaling fluid and 0 5 l water Re insert water tank 6 Press On Off button and coffee button simultaneously for at least 3 seconds to switch on machine and start descaling mode fast blinking coffee button Descaling 7 Press coffee butt...

Страница 25: ...let entire descaling solution run through Rinsing 11 Empty pot 12 Remove filter from capsule inlet 13 Rinse water tank thoroughly and fill it with fresh water 14 Place pot on drip tray 15 Press coffee button to start pump Let complete content of water tank run through coffee outlet 16 Switch off machine Descaling is completed 17 Insert drip grid 18 Clean machine 9 10 13 14 15 16 12 11 17 18 ...

Страница 26: ...ating up 7 Open valve fully till water begins to flow 8 Close valve until 12 bar are indicated The manometer must be observed continuously and the pressure regulated using the valve if necessary With increasing temperature the pressure also increases if necessary readjust the pressure to 12 bar 9 Perform measurement for approx 30 sec 10 There must be at least 60 120 ml water in the measuring beake...

Страница 27: ...et 3 Press down closing handle lightly till pressure plug fits in capsule cage 4 Pull off holding device The pressure plug clamps itself to the capsule cage 5 Position pot underneath exit tube of pressure plug 6 Fill water tank 7 Connect mains cable Dangerous voltage inside coffee machine Do not touch any live part while performing checks Hot pressurized parts inside coffee machine Do not touch an...

Страница 28: ... rapidly initially and stabilise between 16 19 bar check of pump pressure The pressure will rise slowly due to the temperature increase If the pressure exceeds 23 bar the machine has to be switched off and pressure released through the pressure valve 11 Perform visual and acoustic checks on all pressurized connections The pump must not be in operation for longer than 50 s without water flow 12 Swi...

Страница 29: ...h coffee outlet 3 After warming up press coffee button and preheat coffee outlet for 10 s with hot water 4 Insert a capsule Cosi is the most suitable 5 Press coffee button 6 Wait until 20 ml coffee has flown in the measuring beaker 7 Measure the coffee temperature approx 5 10 mm below the outlet opening Coffee temperature should be approx 86 C 3 C 187 F 5 4 F 1 2 4 3 7 5 6 ...

Страница 30: ...rocedure 1 Eject capsule 2 Empty capsule container 3 Empty water tank and drip tray 4 Clean water tank and drip tray 5 Fill tank with fresh water 6 Reassemble coffe machine 7 Press On Off button 8 Press coffee button and rinse coffe outlet for 10 s 9 Clean coffee machine 3 4 5 1 8 7 2 9 ...

Страница 31: ...lable through Nespresso Please contact the Nespresso club 1 2 0004878 0004872 Pos EFR nr Component 1 Pressure gauge 2 Repairing service holder device A for EF 470 2 Repairing service holder device B for EF 471 3 0004872 Special screwdriver with oval bit 4 0004878 Oval bit for screwdriver ...

Страница 32: ... 470 8 40477 Drip tray EF 470 printed Turmix 8 40478 Drip tray EF 470 printed Krups 8 40479 Drip tray EF 470 printed Nespresso 9 39197 Hose water tank pump 10 40691 Water tank connector assembled 11 39195 Pump attachment 12 39196 Pump fixation 13 37384 Clip D 5mm 14 5470 Clip to tube 770 15 24374 O ring 3 4 x 1 9 silicon 16 37454 Angle connection for hoses 17 41029 Pump 230V 17 42530 Pump 120V 17 ...

Страница 33: ... 29 39153 Coffee button EF 470 30 39152 ON OFF button EF 470 31 26392 Silicon hose 32 39198 Hose thermoblock CBU 33 39142 Water tank EF 470 34 40685 Compact brewing unit CBU 35 39168 Cover EF 470 36 39256 Screw M4 x 25 Torx 20 37 39162 Closing handle EF 470 38 19799 Screw M4 x 8 Torx 20 39 21542 Thermal cutoff clip 40 41436 Thermoblock complete 230V 40 41434 Thermoblock complete 120V 40 41435 Ther...

Страница 34: ...40480 Drip tray EF 471 printed Nespresso 8 40481 Drip tray EF 471 printed Magimix 8 40482 Drip tray EF 471 printed Koenig 8 40483 Drip tray EF 471 printed DeLonghi 9 39197 Hose water tank pump 10 40691 Water tank connector assembled 11 39195 Pump attachment 12 39196 Pump fixation 13 37384 Clip D 5mm 14 5470 Clip to tube 770 15 24374 O ring 3 4 x 1 9 silicon 16 37454 Angle connection for hoses 17 4...

Страница 35: ...29 39154 Coffee button EF 471 30 39155 ON OFF button EF 471 31 26392 Silicon hose 32 39198 Hose thermoblock CBU 33 39143 Water tank EF 471 34 40685 Compact brewing unit CBU 35 39169 Cover EF 471 36 39256 Screw M4 x 25 Torx 20 37 39163 Closing handle EF 471 38 19799 Screw M4 x 8 Torx 20 39 21542 Thermal cutoff clip 40 41436 Thermoblock complete 230V 40 41434 Thermoblock complete 120V 40 41435 Therm...

Страница 36: ...36 Service Manual EF 470 EF 471 en Version 1 1 Notes ...

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