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EF470
Schematic
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Krups EF470, EF471, XN2005 Schematic

en Service Manual Coffee Machine
EF 470 EF 471
Essenza
Contents
Preface _____________________________ 3
Main Components__________________ 4
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
2

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
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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
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1
4
5
6
7
8
9
3
2
18
11
17
12
13
Service Manual EF 470 / EF 471 enVersion 1.1
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14
15
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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
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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
5
6
1
2
4
Service Manual EF 470 / EF 471 enVersion 1.1
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3
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
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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.
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3
2
4
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5
Service Manual EF 470 / EF 471 enVersion 1.1
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7
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.
2
3
6
45
7
Service Manual EF 470 / EF 471 enVersion 1.1
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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.
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2
4
3
5
7
6
Service Manual EF 470 / EF 471 enVersion 1.1
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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.
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1
2
4
3
3 x
6
7
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).
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