Nespresso EF 281 User manual

Category
Coffee making accessories
Type
User manual

This manual is also suitable for

SERVICE MANUAL
PIXIE COFFEE MACHINES
PIXIE C EF 280
PIXIE D EF 281
Version 1.2 en
Pixie service manual
2
CONTENTS
1 General Safety Notes ........................................................................................5
2 Main Components..............................................................................................6
2.1 Overview............................................................................................................ 6
2.2 Interior view........................................................................................................ 7
2.3 Fluid System ...................................................................................................... 8
2.3.1 Water circuit diagram................................................................................8
2.3.2 Water circuit..............................................................................................9
3 Technical Data ..................................................................................................10
3.1 Rating plates.................................................................................................... 10
3.1.1 Examples of brand specific rating plates ................................................10
3.1.2 Rating plate details (example) ................................................................11
3.2 Technical specifications................................................................................... 12
3.2.1 Dimensions and weight...........................................................................14
4 Operation............................................................................................................15
4.1 General information.......................................................................................... 15
4.2 Status indication............................................................................................... 15
4.3 Machine modes................................................................................................ 16
4.4 Program/reset fill up level................................................................................. 18
4.4.1 Programming the fill up level...................................................................18
4.4.2 Resetting the fill up level and auto shut off.............................................19
4.5 Empty water system......................................................................................... 19
4.6 Program auto shut off time............................................................................... 20
5 Maintenance ......................................................................................................21
5.1 Descaling ......................................................................................................... 21
5.1.1 Descaling procedure...............................................................................21
5.2 Cleaning procedure.......................................................................................... 25
6 Troubleshooting...............................................................................................26
6.1 Check list.......................................................................................................... 26
7 Repairs................................................................................................................28
7.1 Safety instructions............................................................................................ 28
7.2 Repair and mounting tips................................................................................. 28
7.3 Tools and accessories ..................................................................................... 30
7.4 General disassembly........................................................................................ 31
7.4.1 Prepare coffee machine for disassembly................................................31
7.4.2 Remove side panels ...............................................................................32
7.4.3 Remove power cord................................................................................33
7.4.4 Remove water guiding............................................................................35
7.4.5 Remove damper springs.........................................................................36
7.4.6 Remove closing handle...........................................................................37
7.4.7 Remove cable cover...............................................................................37
7.4.8 Remove right light guide.........................................................................38
7.4.9 Remove blind..........................................................................................39
Pixie service manual
3
7.4.10Remove housing right.............................................................................39
7.4.11Remove main assembly .........................................................................44
7.4.12Remove front ring...................................................................................46
7.4.13Remove key caps of push buttons..........................................................47
7.5 Replacing pump............................................................................................... 48
7.6 Replacing functional block............................................................................... 50
7.7 Replacing brewing unit..................................................................................... 52
7.8 Replacing flow meter ....................................................................................... 57
7.9 Wiring diagrams............................................................................................... 59
7.9.1 Wiring diagram 220 V - 240 V IEC..........................................................59
7.9.2 Wiring diagram 120 V UL (USA / Canada).............................................60
7.9.3 Wiring diagram 127 V IEC (Brazil)..........................................................61
7.9.4 Wiring diagram 127 V IEC (Mexico) .......................................................62
7.9.5 Wiring diagram 100 V IEC (Japan).........................................................63
7.9.6 Wiring diagram 110 V IEC (Taiwan).......................................................64
8 Function tests...................................................................................................65
8.1 Safety instructions............................................................................................ 65
8.2 Required equipment......................................................................................... 65
8.2.1 Overview.................................................................................................65
8.2.2 Pressure gauge adapter.........................................................................66
8.2.3 Mounting pressure gauge adapter..........................................................67
8.3 Measure flow rate ............................................................................................ 68
8.4 Pressure and leakage checks.......................................................................... 69
8.4.1 Preparations ...........................................................................................70
8.4.2 Test run...................................................................................................71
8.5 Measure coffee temperature............................................................................ 72
8.6 Protective earth (PE) continuity test................................................................. 74
8.6.1 What is the protective earth continuity test about?.................................74
8.6.2 General...................................................................................................74
8.6.3 Test sequence........................................................................................75
8.6.4 What to do if the protective earth continuity test fails .............................76
8.7 Protective insulation test.................................................................................. 76
8.7.1 What is the protective insulation test about?..........................................76
8.7.2 General...................................................................................................76
8.7.3 Test sequence........................................................................................77
8.7.4 What to do if the insulation test fails.......................................................78
9 Explosion Drawings........................................................................................79
9.1 EF 280 Explosion drawing............................................................................... 79
9.2 EF 281 Explosion drawing............................................................................... 80
10 Parts List............................................................................................................81
10.1 Nespresso EF 280 / C60 and EF 281 / D60 .................................................... 81
10.2 208 Turmix TX160 CH..................................................................................... 83
10.3 281 DeLonghi EN125 EU................................................................................. 84
10.4 280 Krups XN300510 EU................................................................................. 85
10.5 281 Magimix M110 EU/GB .............................................................................. 86
10.6 281 Koenig D60 CH......................................................................................... 87
11 Notes...................................................................................................................88
Pixie service manual
4
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 Pixie coffee
machines EF 280 and EF 281.
This manual should be used by the technicians as a valuable aid to guarantee the
permanent readiness for use of the machines. In order to take full advantage of all the
functions, it is absolutely necessary to follow the instructions in this manual.
Visit the Nespresso technical website periodically to check for upgrades, technical
modifications, counter measures etc. for these coffee machines:
https://business.nespresso.com
CONTENT UPDATES
Version 1.2
Improved general disassembly procedures for cable cover and front ring.
Version 1.1
Function test corrections in connection with translations of this service manual.
Version 1.0
First released service manual version, in English only.
Please keep this
manual together with
the corresponding
service documentation.
This way you are assured
to have the necessary
information.
Access is restricted
and can be obtained
by asking your
Nespresso technical
contact person..
The version number
of this service manual
is printed on the lower
right corner of the front
page.
Pixie service manual
5
GENERAL SAFETY NOTES
1 GENERAL SAFETY NOTES
As an additional safety measure, the use of a residual current device (RCD), also called
a ground fault circuit interrupter (GFCI), in the repair centre is highly recommended.
Risk of fatal electrical shock and fire!
Mains voltage inside the coffee machine.
Unplug appliance before cleaning.
Never clean wet or immerse plug, cord or appliance in any fluid.
Disconnect the mains plug before disassembly - the appliance must
be free of voltage.
This device does
not protect against
electrical shock due to
contact with both circuit
conductors.
Example illustrations
of typical devices.
Use a GFCI with a trip
level of 4 - 6 mA (USA)
resp. a RCD with a trip
level of 15 - 30 mA (Europe).
A trip level above 30 mA
provides only very limited
protection against harm
from an electric shock.
1) RCD protected socket-outlet
2) Plug-in RCD unit
3) GFCI socket
4) Plug-in GFCI
Danger of burns!
Hot parts and water under pressure inside the coffee machine
(particularly in the thermoblock).
Let coffee machine cool down before cleaning or disassembly.
1
2
RESET
TEST
RESET
TEST
3
4
Pixie service manual
6
MAIN COMPONENTS
2 MAIN COMPONENTS
2.1 Overview
1) Drip grid
2) Capsule container for used capsules
(backlighted)
3) Feed opening for capsule
4) Closing handle
5) Coffee button "small cup" / "Espresso"
(backlighted)
6) Coffee button "large cup" / "Lungo"
(backlighted)
7) On/Off switch
8) Housing right
9) Water level detection
10) Water tank lid
11) Water tank
12) Power cord
13) Water tank connector
14) Side panel left/right
15) Housing left
16) Coffee outlet
17) Waste water container
18) Folding cup support
19) Maintenance unit
15
1
2
17
4
3
16
5
7
10
11
12
6
18
14
13
8
9
19
Pixie service manual
7
MAIN COMPONENTS
2.2 Interior view
This interior view
shows the wired cof-
fee machine model
Pixie C.
1) Steam cover
2) Pyramid plate
3) Brewing device
4) Thermoblock
5) Sound damper
6) Electronic control board
7) Water tank valve
8) Flow meter
9) Light guide (for capsule container)
10) Opening in the housing to store excess
lenght of power cord
11) Pump
12) Thermal cut off fuse
13) Magnetic mounting
2
3
4
7
8
9
11
12
6
10
13
1
5
Pixie service manual
8
MAIN COMPONENTS
2.3 Fluid System
2.3.1 Water circuit diagram
Legend:
1) Water tank
2) Flow meter
3) Pump
4) Sound damper
5) Thermoblock
6) Check valve
7) Brewing unit
8) Capsule container
9) Waste water container
10) Drip grid
Fresh cold water
Fresh hot water
Coffee
Waste/drip water
BU
TB
1
3
2
5
7
8
9
10
4
6
Pixie service manual
9
MAIN COMPONENTS
2.3.2 Water circuit
1) Pump
2) Coffee outlet
3) Brewing unit
4) Check valve
5) Thermoblock
6) Water tank
7) Sound damper
8) Flow meter
9) Water tank connector
3
5
4
2
1
6
7
8
9
Pixie service manual
10
TECHNICAL DATA
3 TECHNICAL DATA
3.1 Rating plates
3.1.1 Examples of brand specific rating plates
The rating plate can
be found at the bot-
tom of the coffee
machine.
This overview shows
examples of various
brands and is subject
to alterations.
Pixie service manual
11
TECHNICAL DATA
3.1.2 Rating plate details (example)
Decoding the alphanumeric serial number
Example:
1) Brand name
2) Voltage and power rating
3) Place of manufacture
4) National approval sign of Russia
(GOST R)
5) National approval sign of Germany
(VDE)
6) Barcode
7) Serial number
8) Machine type
9) Special disposal icon
(do not dispose with ordinary waste)
10) Sign of conformity (CE)
11) Conformity with RoHS guidelines (lead
free solder, etc.)
12) Article number of the rating plate
1
2
3
6
7
8
9
10
12
4
5
11
By decoding the date
of production and
machine type, the
coffee machine can be
identified exactly.
Checksum
Color version
Type of mains plug
Mains voltage
Distributing partner
Incremental number per production day
Manufacturing plant
Manufacturer designation of the machine type (EF 280)
10232 ... Date of production
(10 = year 2010, 232 = 232
nd
day of the year)
102 322 801 0001 782 1Cs
Pixie service manual
12
TECHNICAL DATA
3.2 Technical specifications
Mains voltage ranges
- Europe, RU, AU, CN, KR, SG, HK, ME, ZA, IL, BR, AR............ 220-240 V, 50/60 Hz
- USA, Canada..................................................................................... 120 V, 50/60 Hz
- BR, MX............................................................................................... 127 V, 50/60 Hz
- Japan ................................................................................................ 100 V, 50/60 Hz
- Taiwan.................................................................................................... 110 V, 60 Hz
Power consumption
220-240 V mains voltage......................................................................approx. 1’260 W
100/110/120/127 V mains voltage.........................................................1’160 - 1’370 W
Power consumption of coffee machine main components
(for all voltages and frequencies)
Thermoblock......................................................................................................1’200 W
Pump......................................................................................................................60 W
Energy consumption (CECED / FEA 2009 method)
Energy efficiency class level ............................................................................. A - 40%
Daily energy consumption....................................................................................72 Wh
Annual energy consumption..........................................................................26.28 kWh
Pump
Pump pressure
- Max. permissible....................................................................................20 bar ± 3 bar
- During coffee preparation (depending on the type of coffee)........................9 - 16 bar
Capacities
Water tank.................................................................................................. approx. 0.7 l
Waste water container......................................................................................... 190 ml
Capsule container ..........................................................................approx. 10 capsules
EuP ... Energy using
Products
See commission regula-
tion no. 1275/2008 of the
European Union.
Approvals CE, UL "for USA and Canada", PSE, Gost R, Ctick,
CCC, KTL, SPRING, SASO, SABS, ISI, IRAM, NOM
EuP standard The coffee machine is EuP 2013 compliant
Advised water tank
capacity to avoid
spilling.
Pixie service manual
13
TECHNICAL DATA
Volume of prepared coffee
- factory settings
Small cup "Espresso"..................................................................................40 ml (±7%)
Large cup "Lungo"..................................................................................... 110 ml (±7%)
- customer settings
Programmable setting range.........................................................................20 - 200 ml
Environmental conditions
Operating temperature............................ + 5 °C up to + 45 °C (+ 41 °F up to + 113 °F)
Storage temperature.................................. - 25 °C up to + 65 °C (- 13 °F up to 149 °F)
Altitude............................................................................up to 2’500 m above sea level
Humidity................................................................................................... no restrictions
Various data
Preheating time.......................................................................................approx. 25 sec
Automatic shut off time.................................................................after 9 min of non-use
Safety temperature (electronically controlled)....................................... 120 °C (248 °F)
Safety temperature (thermal cut-off)..................................................... 167 °C (333 °F)
Coffee temperature at outlet ...........................................86 °C ± 3 °C (187 °F ± 5,4 °F)
Pixie service manual
14
TECHNICAL DATA
3.2.1 Dimensions and weight
Dimensions ( length x width x height)............................................ 326 x 111 x 235 mm
Power cable length...............................min. 0.8 m (depending on national regulations)
Cup support, folded down ....................... 90 mm, for espresso and lungo cups/glasses
Cup support, tilted up....................................................146 mm, for macchiato glasses
Weight (without water)............................................................................. approx. 2.8 kg
Dimensions in [mm].
235
326
111
90
146
Pixie service manual
15
OPERATION
4 OPERATION
4.1 General information
For an overview of operational controls see “Main Components” on page 6.
For basic operation of the machine such as preparing a coffee and other related infor-
mation, refer to the user manual.
4.2 Status indication
According to the following table the status of the coffee machine is shown by
- the two coffee buttons with white backlight
- the capsule container with white or red backlight.
Machine
status etc.
"Small cup"
button
"Large cup"
button
Capsule container
backlight
Water tank level
high / low / missing
LED signal
Off All LED‘s off
Error
Blinking fast (2 Hz,
0.25 s on/0.25 s off)
3 times every 2 sec-
onds, alternating
Heat up
Blinking 1 Hz,
0.5 s on, 0.5 s off
Preselect
small cup
Blinking 1 Hz,
0.5 s on, 0.5 s off
Preselect big
cup
Blinking 1 Hz,
0.5 s on, 0.5 s off
Ready LED‘s on
Brewing small
cup
Blinking 1 Hz,
0.5 s on, 0.5 s off
Brewing big
cup
Blinking 1 Hz,
0.5 s on, 0.5 s off
Rinse small
cup
Blinking 1 Hz,
0.5 s on, 0.5 s off
(same as brewing
small cup)
Pixie service manual
16
OPERATION
4.3 Machine modes
This table helps to understand the operating modes of the Pixie coffee machines:
Rinse big cup
Blinking 1 Hz,
0.5 s on, 0.5 s off
(same as brewing big
cup)
Volume brew-
ing small cup
Blinking 1 Hz,
0.5 s on, 0.5 s off
(same as brewing
small cup)
Volume brew-
ing big cup
Blinking 1 Hz,
0.5 s on, 0.5 s off
(same as brewing big
cup)
Descaling
ready
Blinking 2 Hz,
0.25 s on, 0.25 s off
Descaling
process -
pump on
Blinking 2 Hz,
0.25 s on, 0.25 s off
(same as descaling
ready mode)
Descaling
process -
pump off
Blinking 2 Hz,
0.25 s on, 0.25 s off
(same as descaling
ready mode)
Emptying /
evaporating
Blinking 2 Hz,
0.25 s on, 0.25 s off
Resetting
Blinking 1 Hz,
0.5 s on, 0.5 s off
(same as heat up)
Overheat
Blinking 1 Hz,
0.5 s on, 0.5 s off
(same as heat up)
Machine mode Enter mode Actions Exit mode
1 Heat up mode
Every time after switch-
ing on machine
Heats up thermoblock
to ready temperature
90 °C within 30 sec
without overshooting
target temperature
e.g. switching off
machine
2 Self test mode
Every time after switch-
ing on machine
Tests:
NTC short circuit
NTC connected
Checks if thermo-
block reaches ready
temperature within
2 min after switch on
e.g. switching off
machine
Machine
status etc.
"Small cup"
button
"Large cup"
button
Capsule container
backlight
Water tank level
high / low / missing
LED signal
Pixie service manual
17
OPERATION
3 Ready mode
After heat up and self
test mode was ok
After brewing or
volume brewing
coffee
After reset mode
After leaving
descaling mode
Keeps thermoblock
temperature at 90 °C
e.g. switching off
machine
4a Brewing mode
4b Volume brewing
mode (program-
ming cup size)
Press and release
coffee button "large
cup" or "small cup"
(brewing mode)
Press and hold
coffee button "large
cup" or "small cup"
for more than 3 s
(programming mode)
Press and release
coffee button "large
cup" or "small cup"
when machine was
in brewing mode or
automatic exit given
by the flow meter
Release coffee
button "large cup" or
"small cup" when
machine is in
programming mode
Switch off machine
5 Descaling mode
Switch on machine,
wait until ready
Press and hold both
coffee buttons for at
least 3 sec
Regulates tempera-
ture to 55 °C (after
pump was started)
Stops and starts
pump with any coffee
button, no volume
brewing in descaling
mode
Press and hold both
coffee buttons for
1 sec
Note: When machine is
switched off during any
descaling mode, then it
goes to descaling
mode ready state after
next switch on.
6 Emptying mode
(evaporing)
1) Switch off machine
2) Press and hold
coffee button
"small cup"
3) Switch on machine
1) Starts pump
2) Stops pump after
10 sec
3) Heats up thermo-
block to 105 °C
(100% power)
4) Switches off ther-
moblock
5) Switches off
machine
6) Blocks machine for
10 min
Switch off machine
7 Resetting mode
1) Switch off machine
2) Press and hold
coffee button
"large cup"
3) Switch on machine
Resets programmed
large and small
coffee volumes to
factory setting
Indicates the reset-
ting mode for 3 sec
Proceeds with self test
mode automatically
8 Auto switch off mode
(factory setting of 9 min
can be changed to
30 min - see page 20)
Automatically after a
certain period of non-
use
Switch off machine
after 9 min resp.
30 min if no coffee is
brewed or 9 min
resp. 30 min after
last brewed coffee
9 Failure mode
Automatically by fol-
lowing failures:
a) NTC short circuit
b) NTC not connected
c) Heat up too slow
Machine indicates fail-
ure with blinking coffee
buttons as long as the
failure is present
When failure is fixed
Machine mode Enter mode Actions Exit mode
Pixie service manual
18
OPERATION
4.4 Program/reset fill up level
Each coffee button can be programmed with a coffee volume for an individual cup size.
The procedure for programming/resetting is the same for both coffee buttons.
4.4.1 Programming the fill up level
Programmable volume range........................................................................20 - 200 ml
Each new program-
ming cycle starts with
the min. volume
(20 ml after 3 sec), regard-
less of a preprogrammed
coffee volume.
1) Prepare coffee as usual (see user
manual), but keep the coffee button
pressed for at least 3 seconds in
order to start programming mode.
2) Only release the button when the
desired fill level is reached.
min
3 sec
max 200 ml
20 ml
200 ml
max 200 ml
min
3 sec
Pixie service manual
19
OPERATION
4.4.2 Resetting the fill up level and auto shut off
With the following procedure all programmed fill up levels will be set back to this factory
settings:
Coffee button "small cup" / "Espresso".................................................................. 40 ml
Coffee button "large cup" / "Lungo"...................................................................... 110 ml
Additionally the auto shut off time will be set back to 9 min (factory setting).
4.5 Empty water system
After every operation, some water (max. 25 ml) remains in the coffee machine. There-
fore the water system must be emptied
- if the coffee machine will not be used for a long time
- as antifreeze measure
- for repairs and shipment.
1) Switch off the coffee machine. 2) Press and hold the button "large cup".
3) Switch on the coffee machine.
4) Release button "large cup".
1
OFF
2
3
4
ON
After this procedure,
the coffee machine
will not be ready for
approx. 10 min (until the
thermoblock cools to below
100 °C ).
1) Switch off coffee machine. 2) Remove water tank.
3) Place a receptacle under the coffee
outlet.
1
OFF
2
3
Pixie service manual
20
OPERATION
4.6 Program auto shut off time
The auto shut off time of 9 min can be changed to 30 min with the following procedure:
To set the auto shut off time back to the factory default of 9 min, see page 19.
4) Press and hold button "small cup".
5) Switch coffee machine on again.
6) Release button "small cup".
- The coffee buttons blink fast simulta-
neously.
- The pump starts to drain the water
system and stops automatically.
- After heating up the therrmoblock, the
machine switches itself off automati-
cally and blocks the On/Off switch for
approx. 10 min.
1) Switch off coffee machine. 2) Press and hold both coffee buttons.
3) Switch coffee machine on again.
4) Release both coffee buttons.
4
5
6
ON
Automatic
switch off
1
OFF
2
3
4
ON
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Nespresso EF 281 User manual

Category
Coffee making accessories
Type
User manual
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