Krups EF470, EF471, XN2005 Schematic

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en Service Manual Coffee Machine

EF 470 EF 471

Essenza

Contents

Preface _____________________________ 3

Main Components__________________ 4

Overview ___________________________ 4 Overview of rating plates ______________ 5 Water circuit_________________________ 6 Technical data _______________________ 7

Operation___________________________ 8

Preparation _________________________ 8 Fill water system _____________________ 9 Making coffee ______________________ 10 Empty water system _________________ 11 Coffee machine status _______________ 12

Troubleshooting___________________ 13

Checking the machine on receipt ______ 13

Repair _____________________________ 15

General disassembly ________________ 15 Replacing thermoblock_______________ 16 Replacing NTC _____________________ 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)_____________ 23

Descaling (1) _______________________ 24 Descaling (2) _______________________ 25 Measuring flow rate _________________ 26 Checking for leaks and pump

pressure (1) ________________________ 27 Checking for leaks and pump

pressure (2) ________________________ 28 Measuring coffee temperature ________ 29 Daily care and final cleaning __________ 30

Spare Parts ________________________ 31

Repair accessories __________________ 31 Spare parts EF 470__________________ 32 Spare parts EF 471__________________ 34

Notes ______________________________ 36

Service Manual EF 470 / EF 471 enVersion 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.

Service Manual EF 470 / EF 471 enVersion 1.1

Main Components

Overview

1) Closing handle

2) Cover

3) Compact brewing unit (CBU)

4) Capsule 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

Service Manual EF 470 / EF 471 enVersion 1.1

Main Components

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

220-240V~

KOENIG APPARATE AG ZÜRICH 17105

1260W 50Hz

MADE IN SWITZERLAND

0040624

TURMIX AG, 8645 Jona, Switzerland

0529 0084 7005 3100 019

220-240V~

TX100

17105

1260W50/60Hz

0040541

Type EN 90.R

0529 0014 7105 1100 011

220-240V~

P = 19 bar

Ser.Nr. 54213 S300075

1260W 50/60Hz

XN200610/1M0-4205

MADE IN SWITZERLAND

0042829

TYPE XN 2006

0529 0054 7005 6100 019

220-240V~

Overview of rating plates

The rating plate

- can be found at the underside of the coffee machine,

- may be of varying design, depending on the brand,

- carries the following information:

• Machine type

• Voltage and power rating

• Approval seal(s)

• Data matrix

• Serial number

• Bar code (Krups)

Serial number codification

Example: 0529 0074 7002 6100 018

05290 production date: 290th day of year 2005 07 machine partner codification 470 machine type 02 voltage / mains plug version 6 color version 1 production site 0001 incremental number per production day 8 checksum number

Service Manual EF 470 / EF 471 enVersion 1.1

Main Components

Water circuit

1) Water tank

2) Water tank valve and connector

3) Pump

4) Thermoblock

5) Compact brewing unit (CBU)

6) Coffee outlet

Service Manual EF 470 / EF 471 enVersion 1.1

Main Components

Technical data

EF 470

291 mm

166 mm

EF 471

291 mm

255 mm

Mains

EUR 230V / 50 Hz USA /CAN 120 V / 60 Hz JAP 100 V / 50-60 Hz

Approvals SEV, CENELEC, CE-conform,

UL, CUL, MITI

Cable length ~1,5 m

Pump data

Pump pressure

- max. permissible 17,5 bar ±1,5 bar

- during coffee preparation 9 -13 bar (depending on brand of coffee)

Flow performance 120-240 ml/min. at 12 bar

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 9.5 Wh

(machine on) (in 1 hour) Stand-by mode 0.45 Wh

(machine off) (in 1 hour)

Various data

Pre-heating time approx. 50 s

Safety temperature (thermal cut-off) 167° C

254 mm

Capacities

Coffee temperature at outlet 86° C ± 3° C

Water tank 0.9 l Drip tray approx. 100 ml Capsule container 10 - 14 pcs.

166 mm

Service Manual EF 470 / EF 471 enVersion 1.1

Weight of machine approx. 3 kg

(without water)

Operation

Preparation

1. Fill tank with water.

2. Insert water tank in coffee machine.

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.

Service Manual EF 470 / EF 471 enVersion 1.1

Operation

Fill water system

If the coffee machine cannot pump water although there is water in the tank, the water circuit may be empty.

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.

Service Manual EF 470 / EF 471 enVersion 1.1

Operation

Making coffee

1. Open closing 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.

Service Manual EF 470 / EF 471 enVersion 1.1

Operation

Empty water system

After operation, residual water remains in the water circuit.

This residual water can be removed

- before a longer period of non-use,

- for frost protection,

- before repair and following shipping.

1. Empty 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.

3 x

After this procedure the machine is

)

Service Manual EF 470 / EF 471 enVersion 1.1

blocked for approx. 10 minutes (till thermoblock temperature < 100° C).

Operation

Coffee machine status

After pressing the On/Off button, an automatic self test is performed to check if

- the NTC is connected,

- the NTC is short circuited,

- the thermoblock reaches the standby temperature within 2 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

Emptying water system blinking fast

Failure blinking three times fast

Service Manual EF 470 / EF 471 enVersion 1.1

Troubleshooting

Checking the machine on receipt

The receipt check enables you to rapidly locate faults on the machine and to initiate appropriate repair action.

Check procedure Symptoms Action / repair work Further action / repair work

1 Check appliance for visible damage

2 Check mechanical elements

3 Fill water tank 3.1 Water tank is leaking

4 Press On/Off button to perform automatic self test

1.1 Parts of housing broken or damaged

1.2 Mains cable damaged

2.1 Closing handle works correctly

2.2 Is the capsule correctly ejected?

2.3 Is the capsule cage seal damaged? (feel with a finger if the seal is damaged)

4.1 Machine is not working (no function)

Follow the check procedure. Repair any faults found and check if the machine is operating perfectly.

YES - Replace parts if necessary NO - Go to point 1.2

YES - Replace mains cable NO - Plug machine to the mains and go to point 2.1

YES - Go to point 2.2

NO - It is hard or impossible to close the closing handle

YES - Go to point 2.3 NO - Replace CBU

YES - Replace CBU NO - Go to point 3

YES - Replace water tank NO - Go to point 4

YES - a) Check if mains cable is functional

YES - b) Check if On/Off button is functional

YES - c) Check if pump is working (press coffee button)

YES - d) Check if coffee button is functional

YES - e) Check if pump's fine wire fuse (128°C) is defective

YES - f) Check if thermoblock’s fine wire fuse (167°C) is defective

YES - Screw on closing handle screws at defined torque and block them with Loctite 241 (see page

20) or replace CBU NO - Replace the CBU

YES - Go to point b) NO - Replace it

YES - Go to point c) NO - Replace it

YES - Go to point f) NO - Go to point d)

YES - Go to point e) NO - Replace it

YES - Replace it NO - Replace pump

YES - Replace it together with electronic control board and if necessary the thermoblock NO - Go to point g)

Service Manual EF 470 / EF 471 enVersion 1.1

Troubleshooting

Check procedure Symptoms Action / repair work Further action / repair work

4.1 Machine is not working (no function)

4 Press On/Off button to perform automatic self test - continued

5 Check coffee temperature while preparing a coffee (see page 29)

6 Check for leaks and check flow rate (see pages 26, 27 and 28)

7 Descaling process (if needed) 7.1 Machine scaled

8 Final cleaning (see page 30)

- continued

4.2 Backlighted coffee button blinks at irregular intervals

5.1 No coffee outlet

5.2 Temperature is too low (less than 83°C)

5.3 Temperature is too high (more than 89°C)

6.1 Leakage at extraction system

6.2 Leakage at tubes connection

6.3 Flow rate out of range

YES - g) Check if electrical wires are functional

NO - Go to point 4.2 YES - Check if thermoblock heating element is func-

tional NO - Self test ok. Go to point 5

YES - a) Water circuit is empty

YES - b) Pyramid plate is clogged

YES - c) Machine is blocked by scale YES - Descale machine (see page 24) NO - Go to point 5.2 YES - Descale the machine (see page 24)

NO - Go to point 5.3 YES - Change NTC

NO - Go to point 6 YES - Replace CBU

NO - Go to point 6.2 YES - Replace defective tube and seal

NO - Go to point 6.3

YES - Machine is scaled

NO - No trouble found during the check procedure.

YES - Descale machine (see page 24) NO - Go to point 8

YES - Replace electronic mainboard NO - Replace defective(s) wire(s)

YES - Replace NTC NO - Replace thermoblock

YES - Fill water circuit (see page 9) NO - Go to point b)

YES - Replace CBU NO - Go to point c)

YES - Descale machine (see page 24) NO - Replace pump

Contact Nespresso Technical Correspondant for further details in order to take decision.

End of check procedure

Service Manual EF 470 / EF 471 enVersion 1.1

Repair

General disassembly

Tool:

- Oval screwdriver

Empty water system if necessary

)



Procedure:

(see page 11).

Unplug from the mains before disassembling machine - appliance must be isolated!

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).

7 + 8 + 6

Service Manual EF 470 / EF 471 enVersion 1.1

Repair

Replacing thermoblock

Tools:

- Torx screwdrivers T10, T30

- Open-ended spanner 10 mm AF

- Torque wrench

Procedure:

1. Follow general disassembly (see page 15).

2. Remove 3 screws (2) and separate thermoblock (40) with support (40) from chassis.

3. Remove screw M6 x 25 and separate thermoblock from its support.

4. Remove screw (38) and separate 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 temperature sensor (43) with spring washer.

Check that there is a clearance of 1-2 mm between thermoblock and support after assemblage.

M6 x 25

900

Service Manual EF 470 / EF 471 enVersion 1.1

Repair

Replacing NTC

Tools:

- Torx screwdriver T10

- Open-ended spanner 10 mm AF

- Torque wrench

Procedure:

1. 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

)

Service Manual EF 470 / EF 471 enVersion 1.1

new NTC temperature sensor (43) with torque wrench (90 - 110 Ncm).

Repair

Replacing pump

Tools:

- Torx screwdriver T10

- Long-nose pliers

- Blade screwdriver, no. 7

Procedure:

1. Follow general disassembly (see page 15).

2. Remove clip (14), hose (18) and o-ring (15).

3. Remove angled hose (9).

4. Release pump (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 clamp (14).

12. Mount angled hose (9).

T 128°C

Service Manual EF 470 / EF 471 enVersion 1.1

Repair

Replacing electronic control board with button prints

Tools:

- Torx screwdriver T10

The service engineer must be



)

Procedure:

earthed using an earthing strap!

Only touch button prints with dedicated gloves to avoid oxydation.

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 of electronic

)

Service Manual EF 470 / EF 471 enVersion 1.1

control board (see pages 21, 22 or

23).

Repair

Replacing compact brewing unit (CBU)

Tools:

- Torx screwdrivers T10, T20

- Blade screwdriver no. 4

- Oval screwdriver

- Long-nose pliers

- Torque wrench

Procedure:

1. Remove water tank (33) and drip tray (8) together with drip grid (7) and capsule container (6).

2. Place machine on the repairing/service holder device (see page 31).

3. Remove 4 screws (2) on the bottom of the machine.

4. Swing 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 compact brewing unit together with new coffee outlet (3) in reverse sequence. Replace o-ring (15).

15 14+32

)

7+8+6

Tighten new (EFR nr. 39256) closing handle screws (36) with a torque of 450 N/cm.

Service Manual EF 470 / EF 471 enVersion 1.1

Repair

Electronic control board, wiring diagram - Europe (230V / 50 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

J6 J1

ON/OFF Print

Thermoblock

NTC

GND

Coffee Button Print

T 167°C

Pump

T 128°C

Mains Plug

L N PE

Service Manual EF 470 / EF 471 enVersion 1.1

Repair

Electronic control board, wiring diagram - 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

J6 J1

ON/OFF Print

Thermoblock

NTC

Coffee Button Print

T 167°C

Pump

T 128°C

Mains Plug

Service Manual EF 470 / EF 471 enVersion 1.1

Repair

Electronic control board, wiring diagram - Japan (100 V / 50-60 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

J6 J1

ON/OFF Print

Thermoblock

NTC

Coffee Button Print

T 167°C

Pump

T 128°C

Mains Plug

L N

Service Manual EF 470 / EF 471 enVersion 1.1

Repair

Descaling (1)

Only use Nespresso decalcifier -



Preparation:

)

Descaling:

never vinegar! Decalcifier is aggressive to surfaces.

1. Switch off machine.

2. Eject capsule. Insert filter from descaling kit in capsule inlet and close handle.

3. Empty drip tray and capsule 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).

7. Press coffee button to start pump.

8. Let entire descaling solution pass through coffee outlet.

Service Manual EF 470 / EF 471 enVersion 1.1

Repair

Descaling (2)

9. Fill water tank again with descaling solution from pot.

10. Repeat descaling procedure one more time: Press coffee button and 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.

Service Manual EF 470 / EF 471 enVersion 1.1

Repair

Measuring flow rate

Procedure:

1. Fill water tank.

2. Insert pressure plug in capsule inlet.

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 measuring beaker underneath exit tube of pressure plug.

6. Switch on machine. Press coffee button after heating-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.

Notice:

- With a flow of < 60 ml the pump is defective or there is a leak in the system.

- Large fluctuations in the pressure gauge readings (± 4 bar) during measurement are indicative of a defective pump.

9. Perform measurement for approx. 30 sec.

10. There must be at least 60-120 ml water in the measuring beaker.

Service Manual EF 470 / EF 471 enVersion 1.1

Repair

Checking for leaks and pump pressure (1)

The following components are checked for leaks:

- Compact brewing unit

- Connections

- Thermoblock

-Pump

Preparation (unplug machine from mains):

1. Remove right side panel (pump is visible).

2. Insert pressure plug in capsule inlet.

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 any hot part while performing checks. Wear safety glasses during inspection.

Continued on next page.

Service Manual EF 470 / EF 471 enVersion 1.1

Repair

Checking for leaks and pump pressure (2)

Procedure (continued):

8. Switch on machine. Press coffee button after heating-up.

9. Open valve and leave water to run out for approx. 10 s.

10. Fully close valve. The pressure will rise rapidly initially and stabilise between 16 - 19 bar (check of pump pressure).

The pressure will rise slowly due to

)

11. Perform visual and acoustic checks on all

the temperature increase. If the pressure exceeds 23 bar, the machine has to be switched off and pressure released through the pressure valve.

pressurized connections.

The pump must not be in operation



12. Switch off machine.

13. Open valve to empty pressure gauge.

Service Manual EF 470 / EF 471 enVersion 1.1

for longer than 50 s without water flow.

Repair

Measuring coffee temperature

Procedure:

1. Press On/Off button to switch on machine.

2. Position measuring beaker underneath 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).

Service Manual EF 470 / EF 471 enVersion 1.1

Repair

Daily care and final cleaning

Procedure:

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.

Service Manual EF 470 / EF 471 enVersion 1.1

Spare Parts

Repair accessories

0004878

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

* Only available through Nespresso. Please contact the Nespresso club.

0004872

Service Manual EF 470 / EF 471 enVersion 1.1

Spare Parts

Spare parts EF 470

10 38

38 39 11 12 13 14

15 16

Pos. EFR nr. Component

1 39166 Upper chassis EF 470

363736

2 24863 Safety screw 3,0 x 12 KST/PT 3 40686 Coffee outlet & front ring EF 470 (package) 5 39378 Side panel EF 470 titanium 5 39148 Side panel EF 470 ivory 5 42614 Side panel EF 470 orange 6 39170 Capsule container EF 470 7 39150 Drip grid EF 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 41030 Pump 100V 18 39199 Hose pump / thermoblock

4342

19 1565 O-ring 5,28 x 1,78 EPDM 20 36613 Angle connection for pump 21 13299 Elastic stop 22 39164 Lower chassis EF 470 23 16052 Screw 3,0 x 12 Torx 10 24 1053 Strain relief screwed 25 39369 Power cord Cebec 1,3m 25 39266 Power cord SEV 1,3m 25 40535 Power cord Israel 1,3m 25 39368 Power cord GB 1,3m

Service Manual EF 470 / EF 471 enVersion 1.1

Spare Parts

Spare parts EF 470 (continued)

10 38

38 39 11 12 13 14

15 16

Pos. EFR nr. Component

25 42135 Power cord UL1,3m

363736

25 39271 Power cord Japan1,3m 26 38412 Angle connection for hoses 27 39188 Electronic base 28 40688 Electronic set 230V 28 40689 Electronic set 120V 28 40690 Electronic set 100V 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 Thermoblock complete 100V 41 40180 Bushing insulator electrical 42 5245 Spring washer M5

4342

43 40190 Temperature sensor 737

900 6328 Strand wire white 100mm 900 39263 Strand wire black 100mm 900 39264 Thermal cutoff 167°C 900 40606 Bushing insulator electrical 900 39630 Strand wire yellow/green 220mm

Service Manual EF 470 / EF 471 enVersion 1.1

Spare Parts

Spare parts EF 471

9 10 38 38 39

15 19 14 20 21 2 22 2 21 23 24 25

363736

40 41 42 43

Pos. EFR nr. Component

1 39167 Upper chassis EF 471 2 24863 Safety screw 3,0 x 12 KST/PT 3 40687 Coffee outlet & front ring EF 471 (package) 5 39379 Side panel EF 471 silver 5 39157 Side panel EF 471 coral red

5 42613 Side panel EF 471 green 6 39171 Capsule container EF 471 7 39151 Drip grid EF 471 8 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"

18 39199 Hose pump / thermoblock 19 1565 O-ring 5,28 x 1,78 EPDM 20 36613 Angle connection for pump 21 13299 Elastic stop 22 39165 Lower chassis EF 471 23 16052 Screw 3,0 x 12 Torx 10 24 1053 Strain relief screwed 25 39369 Power cord Cebec 1,3m 25 39266 Power cord SEV 1,3m 25 40535 Power cord Israel 1,3m

Service Manual EF 470 / EF 471 enVersion 1.1

Spare Parts

Spare parts EF 471 (continued)

9 10 38 38 39

15 19 14 20 21 2 22 2 21 23 24 25

40 41 42 43

Pos. EFR nr. Component

25 39368 Power cord GB 1,3m

363736

25 42135 Power cord UL 1,3m 25 39271 Power cord Japan 1,3m 26 38412 Angle connection for hoses

27 39188 Electronic base 28 40688 Electronic set 230V 28 40689 Electronic set 120V 28 40690 Electronic set 100V 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 Thermoblock complete 100V

41 40180 Bushing insulator electrical 42 5245 Spring washer M5 43 40190 Temperature sensor 737

44 18904 Screw 3,0 x 16 Torx 10 900 6328 Strand wire white 100mm 900 39263 Strand wire black 100mm 900 39264 Thermal cutoff 167°C 900 40606 Bushing insulator electrical 900 39630 Strand wire yellow/green 220mm

Service Manual EF 470 / EF 471 enVersion 1.1

Notes

Service Manual EF 470 / EF 471 enVersion 1.1

Krups EF470, EF471, XN2005 Schematic

Specifications and Main Features

Frequently Asked Questions

User Manual

Preface

Main Components

Overview

Overview of rating plates

Water circuit

Technical data

Operation

Preparation

Fill water system

Making coffee

Empty water system

Coffee machine status

Troubleshooting

Checking the machine on receipt

Repair

General disassembly

Replacing thermoblock

Replacing NTC

Replacing pump

Replacing electronic control board with button prints

Replacing compact brewing unit (CBU)

Electronic control board, wiring diagram - Europe (230V / 50 Hz)

Electronic control board, wiring diagram - USA (UL, 120 V / 60 Hz)

Electronic control board, wiring diagram - Japan (100 V / 50-60 Hz)

Descaling (1)

Descaling (2)

Measuring flow rate

Checking for leaks and pump pressure (1)

Checking for leaks and pump pressure (2)

Measuring coffee temperature

Daily care and final cleaning

Spare Parts

Repair accessories

Spare parts EF 470

Spare parts EF 471

Notes