Nespresso Essenza FS User manual

en Service Manual Coffee Machine
EF 473
EF 474
Essenza FS

2
Service Manual EF 473 / EF 474 enVersion 1.0
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
Programming _______________________ 11
Reset to factory settings______________ 12
Empty water system _________________ 13
Coffee machine status _______________ 14
Troubleshooting___________________ 15
Checking the machine on receipt ______ 15
Repair _____________________________ 17
General disassembly ________________ 17
Replacing thermoblock and NTC ______ 18
Replacing flow meter and On/Off switch 19
Replacing pump ____________________ 20
Replacing electronic control board with
button prints ________________________ 21
Replacing compact brewing unit (CBU) _22
Electronic control board, wiring diagram -
Europe (230V / 50 Hz) _______________ 23
Electronic control board, wiring diagram -
USA (UL, 120 V / 60 Hz) _____________ 24
Electronic control board, wiring diagram -
Japan (100 V / 50-60 Hz)_____________ 25
Descaling (1) _______________________ 26
Descaling (2) _______________________ 27
Measuring flow rate _________________ 28
Checking for leaks and pump
pressure (1) ________________________ 29
Checking for leaks and pump
pressure (2) ________________________ 30
Measuring coffee temperature ________ 31
Daily care and final cleaning __________ 32
Spare Parts ________________________ 33
Repair accessories __________________ 33
Spare parts EF 473__________________ 34
Spare parts EF 474__________________ 36
Notes ______________________________ 38

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Service Manual EF 473 / EF 474 enVersion 1.0
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 473 and EF 474.
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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Service Manual EF 473 / EF 474 enVersion 1.0
Main Components
Overview
1) Closing handle
2) Cover
3) Compact brewing unit (CBU)
4) Capsule inlet
5) Side panel
6) Flow meter
7) Button "small cup", back lighted
8) Coffee outlet
9) Button "large cup", back lighted
10) Container for used capsules
11) Drip grid
12) Drip tray
13) Lower chassis
14) Thermoblock TB 2003
15) Electronic control board
16) Pump CP4-SP C2
17) Water tank connector
18) On/Off switch
19) Upper chassis
20) Water tank
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4
8
9
10
11
12
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14 15
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19
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18
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Main Components
Service Manual EF 473 / EF 474 enVersion 1.0
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: 0527 8074 7305 9100 015
05278 production date: 278
th
day of year 2005
07 machine partner codification
473 machine type
05 voltage / mains plug version
9 color version
1 production site
0001 incremental number per production day
5 checksum number
0043801
1260W50Hz
MADE IN SWITZERLAND
0527 8044 7405 2100 015
Typ: KOENIG
Capri Automatic 03165
220-240V~
KOENIG APPARATE AG ZÜRICH 05105
1260W50Hz
Made in Switzerland
0043809
ref 11244
0527 80647405 2100 017
MAGIMIX M100 AUTO
220-240V
Fabriqué en Suisse
1260W50Hz
XN210540/1M0-4005
MADE IN SWITZERLAND
0044164
TYPE XN 2105
0527 80547305 4100 017
220-240V~
0044217
1260W50Hz
MADE IN SWITZERLAND
0527 80747305 9100 015
NESPRESSO Type C100
220-240V~
1260W50Hz
MADE IN SWITZERLAND
0044074
TURMIX AG, 8645 Jona, Switzerland
0527 80847305 9100 016
220-240V~
Turmix TX150
05105
1260W50/60Hz
MADE IN EUROPE
0044016
Type EN 95.M
0527 8014 7405 2100 012
220-240V~
P = 19 bar
Ser.Nr. 54013S300075

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Main Components
Service Manual EF 473 / EF 474 enVersion 1.0
Water circuit
1) Water tank
2) Water tank valve and connector
3) Flow meter
4) Pump
5) Thermoblock
6) Compact brewing unit (CBU)
7) Coffee outlet
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Main Components
Service Manual EF 473 / EF 474 enVersion 1.0
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 8.0 Wh
1 small cup (40 ml*) 4.5 Wh
1 large cup (110 ml*) 9.5 Wh
Stand-by mode (in 1 h) 11 Wh
* factory setting
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 473
EF 474

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Service Manual EF 473 / EF 474 enVersion 1.0
Operation
Preparation
1. Fill tank with water.
2. Insert water tank in coffee machine.
3. Switch on machine with On/Off switch.
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 (both buttons
are lighted).
6. Press button "small cup" or "large cup" to
rinse coffee outlet.
7. Press the same button again in case the
receptacle is filled.
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Operation
Service Manual EF 473 / EF 474 enVersion 1.0
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 button "large cup".
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 button "large cup" again to stop
water flow.
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Operation
Service Manual EF 473 / EF 474 enVersion 1.0
Making coffee
1. Open closing handle.
2. Insert capsule.
3. Press down closing handle completely.
4. Position cup under coffee outlet.
5. Press button "small cup" or "large cup".
Coffee flow starts and stops automaticly.
6. In case the cup is going to flow over, press
the same button again.
7. Briefly open closing handle after coffee
preparation and eject capsule into capsule
container.
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