Nespresso Essenza EF 470, Essenza EF 471 Service Manual

en Service Manual Coffee Machine

EF 470 EF 471

Essenza

Service Manual EF 470 / EF 471 enVersion 1.1

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

Main Components

Service Manual EF 470 / EF 471 enVersion 1.1

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

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~

Main Components

Service Manual EF 470 / EF 471 enVersion 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

Main Components

Service Manual EF 470 / EF 471 enVersion 1.1

Technical data

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

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 9.5 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 Coffee temperature at outlet 86° C ± 3° C

Weight of machine approx. 3 kg

(without water)

166 mm

255 mm

291 mm

166 mm

254 mm

291 mm

EF 470

EF 471

Service Manual EF 470 / EF 471 enVersion 1.1

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.

Operation

Service Manual EF 470 / EF 471 enVersion 1.1

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.

Operation

Service Manual EF 470 / EF 471 enVersion 1.1

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.

Operation

Service Manual EF 470 / EF 471 enVersion 1.1

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.

)

After this procedure the machine is blocked for approx. 10 minutes (till thermoblock temperature < 100° C).

3 x

+ 25 hidden pages

Nespresso Essenza EF 470, Essenza EF 471 Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual