SERVICE MANUAL
COFFEE MACHINES
PRODIGIO
C70 / D70
PRODIGIO&MILK
C75 / D75
Version 1.0 en, 12.02.2016
CONTENTS
1 General safety notes .........................................................................................6
2 Main components ...............................................................................................7
2.1
Overview - Prodigio&milk coffee machine.......................................................... 7
2.1.1 Overview - milk frother (Aero 3) ................................................................8
2.2
Interior view of coffee machine .......................................................................... 9
2.3
Interior view of swivel arm................................................................................ 10
2.4
Fluid system ..................................................................................................... 11
3 Technical data ...................................................................................................12
3.1
Rating plates .................................................................................................... 12
3.1.1 Example of brand specific rating plate ....................................................12
3.1.2 Examples of country specific rating plates..............................................12
3.1.3 Rating plate details (example) ................................................................13
3.2
Technical specifications.................................................................................... 14
3.2.1 Coffee machines .....................................................................................14
3.2.2 Milk frother (Prodigio&milk).....................................................................16
3.2.3 Dimensions, weight and size ..................................................................17
4 Operation............................................................................................................18
4.1
General information.......................................................................................... 18
4.2
Status indications ............................................................................................. 18
4.2.1 Status indication of coffee machine ........................................................18
4.2.2 Status indication of milk frother ...............................................................19
4.3
Machine modes................................................................................................ 20
4.3.1 Machine modes of coffee machine .........................................................20
4.3.2 Machine modes of milk frother................................................................22
4.4
Nespresso App (application software) ............................................................. 22
4.4.1 Prerequisites ...........................................................................................22
4.4.2 Pairing smartphone or tablet with coffee machine ..................................23
4.4.3 Nespresso App - coffee machine setup ..................................................26
4.4.4 Nespresso App - machine page overview ..............................................27
4.4.5 Nespresso App - coffee brewing management .......................................27
4.4.6 Nespresso App - machine management.................................................28
4.4.7 Nespresso App - capsule stock management ........................................29
4.4.8 Nespresso App - water management .....................................................30
4.4.9 Nespresso App - troubleshooting tips .....................................................30
4.5
Empty water system......................................................................................... 31
5 Maintenance ......................................................................................................32
5.1
Descaling ......................................................................................................... 32
5.1.1 Descaling procedure ...............................................................................32
5.2
Cleaning procedure for coffee machine ........................................................... 34
5.3
Cleaning procedure for milk frother.................................................................. 35
6 Troubleshooting ...............................................................................................36
6.1
2
Check list for coffee machine ........................................................................... 36
Prodigio service manual
Version 1.0 en
6.2
Check list for milk frother ................................................................................. 38
6.3
Machine error code table ................................................................................. 39
7 Repairs................................................................................................................ 40
7.1
Safety instructions ........................................................................................... 40
7.2
Repair and mounting tips ................................................................................. 40
7.3
Tools and accessories ..................................................................................... 41
7.4
General disassembly ....................................................................................... 42
7.4.1 Prepare coffee machine for disassembly................................................ 42
7.4.2 Remove outlet cover............................................................................... 43
7.4.3 Remove front cover ................................................................................ 44
7.4.4 Remove cover ........................................................................................ 45
7.4.5 Remove blind.......................................................................................... 47
7.4.6 Remove drop stop .................................................................................. 48
7.4.7 Remove MMI board and light guides ...................................................... 49
7.4.8 Remove lever and light barrier ............................................................... 50
7.4.9 Remove print cover ................................................................................ 51
7.4.10Remove pivot bottom, water tank connector and power cable ............... 52
7.4.11 Remove pivot bottom, water tank connector, power cable and
Otter connector (Prodigio&milk).............................................................. 54
7.4.12Remove electronic module (main PCB).................................................. 59
7.4.13Remove main board and flowmeter........................................................ 60
7.4.14Remove high pressure tube ................................................................... 62
7.4.15Remove pump ........................................................................................ 63
7.4.16Remove brewing unit .............................................................................. 64
7.4.17Disassemble brewing unit drive .............................................................. 67
7.4.18Remove thermoblock from capsule cage ............................................... 69
7.5
Wiring diagrams - Prodigio coffee machine ..................................................... 70
7.5.1 Wiring diagram 220 V - 240 V IEC ......................................................... 70
7.5.2 Wiring diagram 120 V UL (USA / Canada) ............................................. 71
7.5.3 Wiring diagram 127 V IEC (Brazil).......................................................... 72
7.5.4 Wiring diagram 127 V IEC (Mexico) ....................................................... 73
7.5.5 Wiring diagram 110 V IEC (Taiwan)........................................................ 74
7.5.6 Wiring diagram 100 V IEC (Japan) ......................................................... 75
7.6
Wiring diagrams - Prodigio&milk coffee machine ............................................ 76
7.6.1 Wiring diagram 220 V - 240 V IEC ......................................................... 76
7.6.2 Wiring diagram 120 V UL (USA / Canada) ............................................. 77
7.6.3 Wiring diagram 127 V IEC (Brazil).......................................................... 78
7.6.4 Wiring diagram 127 V IEC (Mexico) ....................................................... 79
7.6.5 Wiring diagram 110 V IEC (Taiwan)........................................................ 80
8 Function tests ................................................................................................... 81
8.1
Safety instructions ........................................................................................... 81
8.2
Required equipment ........................................................................................ 81
8.2.1 Overview................................................................................................. 81
8.3
Measure coffee temperature............................................................................ 82
8.4
Tightness and leakage checks........................................................................ 83
8.4.1 Preparations ........................................................................................... 83
8.4.2 Test run ................................................................................................... 84
8.5
Milk frother tests (Prodigio&milk) ..................................................................... 85
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Prodigio service manual
3
8.5.1 Measure hot milk temperature ................................................................85
8.5.2 Measure milk froth ratio ..........................................................................85
8.6
Protective earth (PE) continuity test................................................................. 86
8.6.1 What is the protective earth continuity test about? .................................86
8.6.2 General ...................................................................................................86
8.6.3 Test sequence.........................................................................................87
8.6.4 What to do if the protective earth continuity test fails..............................88
8.7
Protective insulation test .................................................................................. 89
8.7.1 What is the protective insulation test about? ..........................................89
8.7.2 General ...................................................................................................89
8.7.3 Test sequence.........................................................................................90
8.7.4 What to do if the insulation test fails .......................................................92
9 Explosion drawings and parts lists .............................................................93
9.1
Explosion drawings C70................................................................................... 93
9.2
Explosion drawings D70................................................................................... 96
9.3
Explosion drawings C75................................................................................... 99
9.4
Explosion drawings D75................................................................................. 102
9.5
Spare parts list................................................................................................ 105
10 Glossary of abbreviations...........................................................................109
11 Notes ................................................................................................................. 110
4
Prodigio service manual
Version 1.0 en
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 Prodigio
coffee machines.
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.
Please keep this
manual together with
the corresponding service
documentation. This way
you are assured to have
the necessary information.
Only use original spare parts from your official supplier for maintenance and repair work.
Spare parts lists and exploded drawings are subject to change. To obtain the last
version, please contact your official spare parts supplier.
Visit the Nespresso technical website periodically to check for upgrades, technical modifications, counter measures etc. for these coffee machines:
https://business.nespresso.com
Access is restricted
and can be obtained
by asking your Nespresso
technical contact person.
CONTENT UPDATES
Version 0.1
•
First draft version of service manual for proofreading, in English only.
Version 0.2
•
•
Updated service manual version for translation, in English only.
Nespresso App description added.
Version 1.0
•
First released service manual version.
Version 1.0 en
Prodigio service manual
5
GENERAL SAFETY NOTES
1
GENERAL SAFETY NOTES
The repair of these machines can only be performed by Nespresso approved after-sales
centers and technicians, using suitable tools and original spare parts and taking into
account the national safety regulations.
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.
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.
This device does
not protect against
electrical shock due to
contact with both circuit
conductors.
1
RESET
Example illustrations
of typical devices.
2
TEST
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.
3
RESET
4
1) RCD protected socket-outlet
2) Plug-in RCD unit
TEST
3) GFCI socket
4) Plug-in GFCI
Danger of burns!
Hot parts and water under pressure inside the coffee machine
(particularly in the thermoblock).
•
6
Let coffee machine cool down before cleaning or disassembly.
Prodigio service manual
Version 1.0 en
MAIN COMPONENTS
2
MAIN COMPONENTS
2.1
Overview - Prodigio&milk coffee machine
1
2
3
4
16
5
15
6
7
8
9
13
12
14
11
10
1)
2)
3)
4)
5)
6)
7)
8)
9)
Maintenance light, orange
Lungo coffee button, 110 ml / 3.7 oz
Espresso coffee button, 40 ml / 1.35 oz
Ristretto coffee button, 25 ml / 0.84 oz
Slider for capsule insertion cover
Capsule insertion slot
Nespresso logo, backlighted
Used capsule container
Drip grid
10) Removable cup support
11) Drip tray
12) Coffee outlet
13) Swivel arm for water tank and milk
frother (only for Prodigio&milk)
14) Water tank
15) Water tank lid
16) Milk frother
The coffee buttons (2, 3, 4) and the Nespresso logo (7) are backlighted in white.
The swivel arm version (13) of the Prodigio can be rotated by 180 degrees, while the
version of the Prodigio&milk can be rotated by 90 degrees only.
A magnet fixing holds the water tank (14) on the swivel arm (13) securely.
The maintenance unit consists of the parts 8 - 11. A position switch monitors the used
capsule container (8) and drip tray (11) in the coffee machine.
A light barrier detects a jammed used capsule or a full resp. missing capsule container (8).
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Prodigio service manual
7
MAIN COMPONENTS
2.1.1 Overview - milk frother (Aero 3)
The milk frother is
part of the coffee
machine Prodigio&milk.
1
2
5
3
6
7
4
1)
2)
3)
4)
Lid
Seal
Jug
Start/stop button
5) Frothing spring (for milk froth only)
6) Mixer for hot milk
7) Spring whisk for milk foam
The lid (1) has a holding fixture for the frothing spring (5).
The inside of the jug (3)
- has level marks for hot milk and milk foam preparation,
- is surface-coated for easy cleaning.
8
Prodigio service manual
Version 1.0 en
MAIN COMPONENTS
2.2
Interior view of coffee machine
7
5 6
4
3
2
1
10
9
8
11
14
13
12
15
1)
2)
3)
4)
5)
6)
7)
8)
Drop stop
Steam cover
Brewing unit
MMI board (Men Machine Interface)
with reinforced silicone keypad
Light guides
Thermoblock
High pressure connector
Motor
Version 1.0 en
9) Water tank connector
10) Magnet fixing for water tank
(3 permanent magnets)
11) Pump
12) Electronic module with flowmeter
13) Magnet fixing for drip tray
14) Light barrier
15) Position switch for used capsule container
Prodigio service manual
9
MAIN COMPONENTS
2.3
Interior view of swivel arm
Swivel arm of
Prodigio&milk - view
from below.
1
Beside the special
swivel arm, the two
coffee machine types have
the same internal design.
2
3
4
5
1) Support for milk frother
2) Otter connector for milk frother
3) Support for water tank
10
Prodigio service manual
4) Cable duct for power cord
5) Cable strain relief
Version 1.0 en
MAIN COMPONENTS
2.4
Fluid system
1
3
2
4
5
13
12
11
10
8
9
5
BU
WT
1
13
8
6
9
6
2
3
TB
4
7
12
FM
7
10
1)
2)
3)
4)
5)
6)
7)
Coffee outlet
Brewing unit
Thermoblock
High pressure connector
Water tank
Water tank valve
Water tank connector with filter
Version 1.0 en
11
8) Pump
9) Flowmeter
10) Drip tray
11) Cup support
12) Used capsule container
13) Drop stop
Prodigio service manual
11
TE C H N I C A L D A T A
3
TE C H N I C A L D A T A
3.1
The rating plate can
be found at the bottom of the coffee machine.
Rating plates
3.1.1 Example of brand specific rating plate
Australia
3.1.2 Examples of country specific rating plates
This overview shows
examples for various
countries and is subject to
alterations.
Prodigio
HOUSEHOLD COFFEE MAKER
MACHINE A CAFÉ POUR LA MAISON
Type: D70
120 V~ 60 Hz 1160 W
MADE IN HUNGARY
FABRIQUÉ EN HONGRIE
4SM3
Europe
Japan
Japan (two-piece rating plate)
Prodigio
ṏရྡ⛠䠖࿼ၲᮘ
ᆺྕ䠖C70
桅ᐃ䓝⌳ཬ桅ᐃ根⋡䠖220 V~ 50 Hz
桅ᐃ弻ධຌ⋡䠖1150 W
ไ㐀ၟ䠖Flextronics International Kft.
୰ᅜ༊௦⌮ၟ䠖໭ி㞛ᕡዉ᪁ὴ⣴࿼ၲ᭷㝈බྖ
MADE IN HUNGARY ໢∳฼ไ㐀
Taiwan
12
Prodigio service manual
Version 1.0 en
TE C H N I C A L D A T A
3.1.3 Rating plate details (example)
1
2
3
8
9
10
4
5
6
11
7
1)
2)
3)
4)
5)
6)
7) Serial number
8) Machine name
9) FCC approval
10) Special disposal icon
(do not dispose with ordinary waste)
11) Eurasian conformity mark
Brand name
Machine type
Voltage and power rating
Place of manufacture
Sign of conformity (CE)
Bar code
Decoding the alphanumeric serial number
Example:
By decoding the date
of production and
machine type, the coffee
machine can be identified
exactly.
15041 C75 k 0090 782 04 t
Checksum
Color version
Type of mains plug
Mains voltage
Distributing partner
Incremental number per production day
Manufacturing plant
Manufacturer designation of the machine type (C75)
15041 ... Date of production
(15 = year 2015, 041 = forty-first day of the year)
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Prodigio service manual
13
TE C H N I C A L D A T A
3.2
Technical specifications
3.2.1 Coffee machines
Mains voltage ranges
Prodigio coffee machine
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
Prodigio&milk coffee machine
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, 60 Hz
BR, KR .......................................................................................................220 V, 60 Hz
CN .............................................................................................................. 220 V, 50 Hz
Approvals
EuP ... Energy using
Products
See commission regulation
no. 1275/2008 of the European Union.
UL and FCC for USA and Canada, CE, PSE, EAC, Ctick,
CCC, KTL, SPRING, SASO, SABS, ISI, IRAM, NOM
EuP standard
The coffee machine is EuP 2013 compliant
Power consumption
Prodigio coffee machine
220-240 V mains voltage...................................................................... approx. 1’260 W
100/110/120/127 V mains voltage ......................................................... 1’160 - 1’370 W
Prodigio&milk coffee machine
220-240 V mains voltage...................................................................... approx. 1’700 W
100/110/120/127 V mains voltage ........................................................ approx. 1’900 W
Power consumption of coffee machine main components
(for all voltages and frequencies)
Thermoblock...................................................................................................... 1’200 W
Pump ...................................................................................................................... 60 W
Milk frother (Prodigio&milk) .........................................................................410 - 490 W
Energy consumption (CECED / FEA 2009 method)
Prodigio coffee machine
Energy efficiency class level ..............................................................................A - 40%
Daily energy consumption .................................................................................... 76 Wh
Annual energy consumption............................................................................... 28 kWh
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Prodigio service manual
Version 1.0 en
TE C H N I C A L D A T A
Prodigio&milk coffee machine
Energy efficiency class level ..............................................................................A - 40%
Daily energy consumption.................................................................................... 89 Wh
Annual energy consumption .............................................................................. 33 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. 0.8 l
Drip tray water capacity................................................................................ min. 100 ml
Capsule container .......................................................................... approx. 10 capsules
Advised water tank
capacity to avoid
spilling.
Volume of prepared coffee
- factory settings
Small cup "Ristretto" ................................................................................... 25 ml (±7%)
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)
Descaling temperature ................................................................. setting 70 °C (158 °F)
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Prodigio service manual
15
TE C H N I C A L D A T A
3.2.2 Milk frother (Prodigio&milk)
Mains voltage
EU ............................................................................................... 220-240 V / 50-60 Hz
US/CA .......................................................................................... 120-127 V / 50-60 Hz
AU ..................................................................................................... 240-260 V / 50 Hz
If replacing a defect
milk frother, check
mains voltage range.
The milk frother
- is available in 3 different models, depending on above mains voltage ranges,
- has to match the mains voltage range of the associated coffee machine.
Capacity
Hot milk ...................................................................................................... max. 240 ml
Hot/cold milk for milk froth ...........................................................................max. 130 ml
Performance data
Preparation times
(with full, semi-skimmed or skimmed milk at 8 °-10 °C fridge temperature)
Hot milk froth (120 ml) ...................................................................................50 - 80 sec
Cold milk froth (120 ml) .................................................................................60 - 80 sec
Hot milk (240 ml) .......................................................................................120 - 180 sec
Temperature
Hot milk ............................................................................................. + 60 °C to + 70 °C
Foam milk.......................................................................................... + 60 °C to + 70 °C
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Prodigio service manual
Version 1.0 en
TE C H N I C A L D A T A
3.2.3 Dimensions, weight and size
218.4
119.5
138
88
255.3
374
Dimensions in [mm].
Prodigio dimensions (length x width x height)......................... 374 x 119.5 x 255.3 mm
Prodigio&milk dimensions (length x width x height) ................ 374 x 218.4 x 255.3 mm
Distance drip grid - coffee outlet: .............................................88 mm (Espresso mode)
Distance bottom - coffee outlet: .......................................... 138 mm (Macchiato mode)
Power cable length .............................. min. 0.8 m (depending on national regulations)
Prodigio weight (without water) ...................................................................approx. 3 kg
Prodigio&milk weight (without water) ..........................................................approx. 4 kg
Milk frother
170
Ø 91
Dimensions of jug cpl. (diameter x height) ................................................ 91 x 170 mm
Whisk for foam (diameter x height) .............................................................. 33 x 32 mm
Weight (with whisk) ............................................................................................... 0.7 kg
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Prodigio service manual
17
OPERATION
4
4.1
OPERATION
General information
For an overview of operational controls see “Main components” on page 7.
For basic operation of the machine such as preparing a coffee and other related information, refer to the user manual.
4.2
Status indications
4.2.1 Status indication of coffee machine
According to the following table the status of the coffee machine is shown by
- light signals of the 3 coffee buttons Lungo, Espresso and Ristretto (white LEDs)
- maintenance light (M-light, orange LED)
- Nespresso logo backlight (N-light, white LED)
Machine status
Off or standby
Heating up
Lungo
Espresso
Ristretto
M-light
N-light
Off
Off
Off
Off
Off
—
—
Blinking, 1 Hz Blinking, 1 Hz Blinking, 1 Hz
Ready
On
On
On
—
—
Brewing coffee
One coffee button is blinking, 1 Hz
—
—
Off
On, 0.5 sec
On, 0.5 sec
—
—
- Espresso
On, 0.5 sec
Off
On, 0.5 sec
—
—
- Ristretto
On, 0.5 sec
On, 0.5 sec
Off
—
—
On
—
On
—
On
—
Off
—
Pre-order active
Programming
coffee cup size
Special functions
Programming
cup size confirmation for
-Lungo
Descaling ready, Blinking, 2 Hz Blinking, 2 Hz Blinking, 2 Hz
pump on/off
Emptying
Off
On, 0.5 sec
Off
confirmation
Emptying
Off
Off
Off
running
Switch standby
Off
On, 3 x 0.5 sec
Off
time to 30 min
- to 9 min
Reset to factory
settings
Off
On, 0.5 sec
Off
Off
—
On, 2 sec
On, 2 sec
On, 2 sec
On, 2 sec
On, 2 sec
Off
Off
Off
Off
Blinking,
3 x 0.5 sec
—
—
—
—
On
Nespresso App. related
First pairing
Low capsule
stock
18
Prodigio service manual
Version 1.0 en
OPERATION
Machine status
Lungo
Espresso
Ristretto
M-light
N-light
Software update
Off
Off
Off
Off
Blinking, 2 Hz
Device identification
—
—
—
—
Blinking,
5 x 0.5 sec
—
—
—
On
—
Off
Off
Off
—
—
—
Blinking, 3 x
—
On
—
Blinking, 2 Hz
—
User intervention required
Notification descaling needed
Out of water
Capsule container full or
removed
Obstacle detection (capsule
ejection)
Errors
Invalid user input
Overheating
Device error
Blinking, 1 Hz Blinking, 1 Hz Blinking, 1 Hz
—
—
—
4.2.2 Status indication of milk frother
The operating button with its red/blue backlight shows the status of the milk frother
according to the following table:
Machine status
State events
Operating button
Off
Backlight off
On - hot milk preparation
Red backlight on
On - cold milk froth preparation
Blue backlight on
Failure/malfunction
(e.g. overheating because of burnt
milk, too less or no milk)
Blinking red backlight
(1 Hz, 0.5 sec on, 0.5 sec off)
Failure: milk frother has wrong
mains voltage range
Fast blinking red backlight
(2 Hz, 0.25 sec on, 0.25 sec off
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Prodigio service manual
19
OPERATION
4.3
Machine modes
4.3.1 Machine modes of coffee machine
This table also contains the keying
sequences for
- volume programming
- descaling
- water system emptying
- resetting
- changing the automatic
switch off time.
This table helps to understand the operating modes of the Prodigio coffee machine:
Machine mode
Actions
Exit mode
1 Heat up mode
Heat up thermoblock to
ready temperature 90
Every time after switche.g. switching off
°C within 30 sec withing on machine
machine
out overshooting target
temperature
2 Self test mode
Tests:
• NTC short circuit
• NTC connected
Every time after switche.g. switching off
• Checks if thermoing on machine
machine
block reaches ready
temperature within
2 min after switch on
3 Ready mode
• After heat up and self
test mode was ok
• After brewing or
volume brewing
Keep thermoblock
coffee
temperature at 90 °C
• After reset mode
• After leaving
descaling mode
4a Brewing mode
Brewing mode:
• Press and release
any coffee button
4b Volume brewing
mode (programming cup size)
Programming mode:
• Open and close the
slider
• Press and hold any
coffee button for
more than 3 sec
5 Descaling mode
20
Enter mode
e.g. switching off
machine
• Press and release
any coffee button
when machine is in
brewing mode or
automatic exit given
by the flowmeter
• Release corresponding coffee
button when
machine is in
programming mode
• Switch off machine
• Press and hold all
three coffee buttons
• Switch on the
• Regulate temperafor at least 6 sec until
machine and wait
ture to 70 °C (after
confirmation with a
until ready
pump was started)
beep.
• Press and hold all
• Stop and start pump
Note: When machine is
three coffee buttons
with any coffee
switched off during any
for at least 6 sec until button, no volume
descaling mode, then it
confirmation with a
brewing in descaling
goes to descaling
beep.
mode
mode ready state after
next switch on.
Prodigio service manual
Version 1.0 en
OPERATION
Machine mode
Enter mode
Actions
Exit mode
6 Emptying mode
(evaporing)
1) Start pump
2) Heat up thermo• When slider is open
block to 105 °C
press and hold the
(100% power)
Ristretto and Lungo
3) Stop pump when
coffee buttons
thermoblock temtogether for at least
perature of 105 °C Switch off machine
6 sec. The other
is reached
coffee button flashes
4) Switch off therfor confirmation.
moblock
• Close the slider to
5) Switch off machine
start the procedure.
6) Block machine for
10 min
7 Resetting mode
• Reset programmed
volumes to factory
settings (Ristretto
25ml, Espresso
40ml, Lungo 110ml)
•
Reset
automatic off
• Switch off machine.
mode
to
9 min.
• Press and hold the
Proceeds with self test
Espresso and Lungo • Reset water hardness to "hard".
mode automatically
coffee buttons
together for at least • Reset capsule
4 sec.
counter and
descaling counter
• Cancel pairing with
Nespresso App.
device
• Activate Bluetooth®
• Automatically after a
certain period of nonuse.
• Manually at any time
by pressing Lungo
and Espresso coffee
• Switch off machine
buttons together for
8 Auto switch off mode
after 9 min resp.
more than 3 sec.
(factory setting of 9 min
30 min if no coffee is
• Change automatic
can be changed to
brewed or 9 min
OFF mode between
30 min)
resp. 30 min after
9 and 30 minutes:
last brewed coffee
Ensure machine is
turned off.
Press and hold Lungo
and Ristretto coffee
buttons together for
at least 3 sec.
9 Failure mode
Version 1.0 en
Automatically by following failures:
a) NTC short circuit
b) NTC not connected
c) Heat up too slow
d) Motor short circuit
e) Motor not connected
Machine indicates failure with blinking mainWhen failure is fixed
tenance light as long as
the failure is present
Prodigio service manual
21
OPERATION
4.3.2 Machine modes of milk frother
The following table helps to understand the operating modes of the milk frother:
Machine mode
Enter mode
1 Hot milk / milk
Press start button briefly
froth preparation
2 Cold milk froth
preparation
4.4
Actions
Exit mode
Start button lights up red.
Milk is heated and mixed.
Automatic switch-off
after preparation
Keep start button pressed Start button lights up blue.
for approx. 2 sec
Milk is mixed only.
Automatic switch-off
after preparation
Nespresso App (application software)
The MMI PCB of the coffee machine is equipped with a Bluetooth® LE (low energy)
module that can establish a wireless connection to a smartphone or tablet.
A special application software (app) is necessary to enable the data exchange between
the devices.
The new, official Nespresso App extends the functionality of the Prodigio coffee machine
with:
•
Capsule stock management
•
- Out-of-stock notification
- Automatic counter update after capsule purchase
Remote and programmed brewing
•
Alerts notifications
•
- Capsule container full
- Capsule blocked
- Water tank empty
Maintenance notifications
•
- Descaling
- Machine Errors
Tutorials
4.4.1 Prerequisites
Smartphone / tablet
Compatible smartphones or tablets with Apple iOS 8.1 or newer:
- iPhone 4S and newer
- iPad 3rd Generation and newer
- iPad mini
- iPod touch 5th Generation and newer
Check compatibility
of other smartphones
or tablets on this website:
www.nespresso.com/prodigio
22
Compatible smartphones or tablets with Android operating system version 5.0 or newer
and Bluetooth® Smart functionality:
- Galaxy S3 / S4 / S4 mini/ S5
- Nexus 5 / 6
Prodigio service manual
Version 1.0 en
OPERATION
Nespresso App
Download the official Nespresso App version free of charge on your smartphone or
tablet depending on the operating system:
Operating system
Store
Apple iOS
Android
Check Bluetooth® function
•
Check that Bluetooth® is enabled on the smartphone or tablet. Look for the Bluetooth® symbol on top of the screen or check settings.
•
Make sure that the coffee machine is switched on and in ready mode. Then search
for a Bluetooth® device with a compatible smartphone or tablet and check if the
Prodigio coffee machine appears on the Bluetooth® devices screen.
If the coffee machine cannot be detected as a Bluetooth® device
- the Bluetooth® function is deactivated
- or the machine is already paired with a device (fixed CMID).
In both cases a reset of the coffee machine is necessary:
• Switch off machine.
•
Press and hold the Espresso and Lungo buttons together for at least 4 sec.
•
All the buttons will turn on for 2 sec. as a confirmation.
Bluetooth® symbol:
It is possible to deactivate the Bluetooth®
function of the coffee
machine with the following
procedure:
Press simultaneously Ristretto and Espresso buttons and remove the plug
from the mains.
A reset of the coffee
machine enables the Bluetooth® function again.
4.4.2 Pairing smartphone or tablet with coffee machine
Pairing is necessary to link the coffee machine to the smartphone or tablet resp. the
Nespresso App.
The CMID (client machine identification) of the smartphone or tablet and the serial
number of the coffee machine are used for identification.
Version 1.0 en
Prodigio service manual
Beside the pairing of
2 Bluetooth® devices,
multiple pairing is also possible:
• Pair 1 coffee machine
with several Bluetooth®
devices (same NNSA
account).
• Pair 2 coffee machines
with the same Bluetooth® device.
23
OPERATION
Pairing procedure
Nespresso App illustrations are either
symbolic or subject to
change depending on the
app version.
Even better, touch
coffee machine with
smartphone or tablet.
Pairing is not possible if the
distance between the two
devices is too big!
24
1) Switch on coffee machine by pressing
any coffee button.
2) Wait until lights stop blinking and
machine is in ready mode.
3) Hold a compatible smartphone or tablet in close proximity to the coffee
machine.
4) Launch Nespresso App on smartphone or tablet.
5) Touch machine icon.
6) Start search for coffee machine by
touching the Bluetooth® symbol.
7) Wait until coffee machine is detected.
Prodigio service manual
Version 1.0 en
OPERATION
Multiple devices can
be connected to the
Prodigio coffee machine
only if using a unique
Nespresso club members
number (NNSA account).
8) Ensure the smartphone or tablet is
placed next to the coffee machine during pairing.
9) Pairing takes place automatically.
10) When the pairing is completed, the
Nespresso logo on the front of the coffee machine will blink 3 times.
If pairing has failed
•
Make sure the smartphone or tablet is in close enough proximity to the coffee
machine.
•
Charge up the smartphone or tablet before pairing. Its smart power management
may turn off Bluetooth® if the battery level is too low.
•
Make sure not to turn on any microwave close to the machine during pairing.
•
Maintain a sufficient distance to devices that can interfere with the pairing process
such as a Wi-Fi/WLAN router.
The Bluetooth® module of the coffee
machine is situated at the
top, beside the coffee buttons.
Special advice for service technician
If a customer’s coffee machine was paired in the repair center (e.g. for troubleshooting):
• Reset settings after pairing.
•
Reset settings of Nespresso App after use and before sending back the machine to
the customer. Otherwise it is not possible for the customer to pair the coffee
machine.
•
Advice customer to pair the coffee machine again at home and to check and adjust
the settings.
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Prodigio service manual
25
OPERATION
4.4.3 Nespresso App - coffee machine setup
If the water hardness
test is omitted, level 5
(very hard water) is used as
default setting.
26
1) Enter name for coffee machine.
2) Use a test strip to determine the local
water hardness.
3) Select appropriate level.
4) Set the capsule counter.
Prodigio service manual
Version 1.0 en
OPERATION
4.4.4 Nespresso App - machine page overview
After multiple pairing,
different machine pictures can appear in the
machine menu.
1
2
1) Machine menu with
- corresponding machine picture
- ring showing overall machine status
(blue ... ok, orange ... problem,
error)
2) Individual machine name
3
3) Brewing menu
• Brew now
• Set schedule for coffee preparation
4
4) Status menu
• Machine
• Capsules
• Water
4.4.5 Nespresso App - coffee brewing management
Touch the desired brewing menu icon on the machine page: Brew now / Set schedule
Version 1.0 en
Prodigio service manual
27
OPERATION
4.4.6 Nespresso App - machine management
Touch machine icon at the bottom of the machine page to display this submenu:
Example if machine status is ok (blue ring
around machine picture).
Example if machine status is not ok
(orange ring around machine picture).
Touch desired submenu on machine management page for more information:
Use the error code for
troubleshooting. Refer
to error code table on page
39.
Example of an error message.
28
Prodigio service manual
Version 1.0 en
OPERATION
Unpairing submenu
Caution!
In case of an unpairing, all setups and specifications will be lost and the
coffee machine will be reset to factory settings.
4.4.7 Nespresso App - capsule stock management
Touch capsule icon at the bottom of the machine page to display this submenu:
1) Capsule stock management with
- stock status
- automatic adjustment
- manual adjustment
1
2
3
Version 1.0 en
2) Change settings
3) Ordering portal
• Order history
• New order
Prodigio service manual
29
OPERATION
4.4.8 Nespresso App - water management
Touch water drop icon at the bottom of the machine page to display this submenu:
1) Water tank management with
- message if customer needs to refill
the water tank
- no water alert
1
2) Descaling submenu with
- warning message before threshold
for descaling is reached
- link to descaling tutorial
2
3
3) Water hardness submenu
• Adjustment of water hardness level
4.4.9 Nespresso App - troubleshooting tips
Problem
Remedy
The Nespresso App does not start.
No orders or customer information about
capsule consumption are communicated to
Nespresso by the app.
Check internet connection of smartphone or tablet.
Machine icon is missing on start screen of the The services of the Nespresso App are not availNespresso App.
able in the current country.
A flag icon appears instead of the machine
Touch flag icon and select another country.
icon.
A programmed coffee preparation was not
executed
The command was not sent to the coffee
machine.
Touching the arrow in the top left corner of the
screen does not program the machine.
Press "Back to My Machine" and retry.
Someone has interacted with the coffee machine
manually or reprogrammed the machine with the
Nespresso app.
30
Prodigio service manual
Version 1.0 en
OPERATION
4.5
Empty water system
After every operation, some water (max. 25 ml / 0.85 oz) remains in the coffee machine.
Therefore the water system must be emptied
- if the coffee machine will not be used for a long time
- as an antifreeze measure
- for repairs and shipment.
After this procedure,
the coffee machine
will not be ready for approx.
10 min (until the thermoblock cools down to
below 100 °C).
Danger of scalding!
Very hot steam and water drops spray out of the coffee outlet.
•
•
Do not reach under coffee outlet.
Maintain a safe distance to the coffee outlet.
1) Remove the water tank.
2) Place a container under the coffee
outlet.
3) Close an open slider.
4) Press and hold the Ristretto and
Lungo coffee buttons together for at
least 6 sec.
The Espresso coffee button flashes
for confirmation.
5) Emptying process starts. Machine
turns to Off mode automatically when
empty.
6) Remove and empty the container.
Version 1.0 en
Prodigio service manual
31
MAINTENANCE
5
5.1
MAINTENANCE
Descaling
Only use Nespresso descaler (5034) or Nespresso descaling kit
(3035/CBU-2) – never use vinegar!
Descaler can damage casing and surfaces.
Immediately clean drops of descaling solution.
Descaling frequency based on water hardness:
The water hardness
can be adjusted any
time with the Nespresso
App.
Water hardness
Test strip
Estimated cup capacity: 40 ml / 1.35 oz
fH: French water hardness
dH: German water hardness
CaCO3 (Calcium Carbonate) in mg/l: American
water hardness
Level
°fH
°dH
CaCO3
Descaling after
0
<5
<3
< 50mg/l
4’000 cups
1
>7
>4
> 70 mg/l
3’000 cups
2
> 13
>7
> 130 mg/l
2’000 cups
3
> 25
> 14
> 250 mg/l
1’500 cups
4
> 38
> 21
> 380 mg/l
1’000 cups
5.1.1 Descaling procedure
Observe the safety
instructions on the
descaler package.
Duration of descaling
procedure: approximately 15 minutes
0.5 l
1) Empty the drip tray and the used
capsule container.
2) Fill the water tank with 1 unit of
Nespresso descaling liquid and add
0.5 l /17 oz of water.
3) Re-insert water tank and place a container under the coffee outlet.
4) To enter the descaling mode, press
and hold the 3 coffee buttons for at
least 6 sec.
A short beep sounds for confirmation
and the coffee buttons start blinking.
Use a container with a
capacity of min. 0.6 l /
20 oz.
32
Prodigio service manual
Version 1.0 en
MAINTENANCE
The brewing unit stays
closed until the end of
the descaling mode.
5) Close an open slider.
6) Press any coffee button to start descaling.
Machine stops when water tank is
empty.
7) Refill the water tank with the used descaling solution collected in the container.
8) When ready, press any coffee button
to repeat the procedure. Machine
stops when water tank is empty.
9) Empty and rinse water tank, capsule
container and drip tray thoroughly.
10) Fill water tank with potable water.
11) Re-insert water tank.
12) Press any coffee button to rinse the
machine. Machine stops when water
tank is empty.
13) To exit the descaling mode, press and
hold the 3 coffee buttons for at least
6 sec.
A short beep sounds for confirmation.
Version 1.0 en
Prodigio service manual
33
MAINTENANCE
5.2 Cleaning procedure for coffee machine
Risk of fatal electrical shock and fire!
Never clean wet or immerse plug, cord or appliance in any fluid.
Unplug appliance and let it cool down to avoid burns.
Risk of damage!
The lenses of the light barrier and the water tank can be scratched.
The surfaces of coffee machine and accessories are not abrasion-proof.
Do not use any strong or abrasive cleaning agent or solvent cleaner.
Do not use a brush to clean the water tank.
Do not put any part in a dishwasher.
Only use a damp cloth or sponge and a mild cleaning agent if necessary.
34
1) Empty maintenance unit (capsule
container and drip tray) daily.
2) Rinse and clean parts thoroughly if
dirty and wipe them dry with a soft
cloth.
3) Clean both lenses of the light barrier
inside the capsule ejection chute with
a clean, soft, slightly damp cloth.
4) Then clean area of maintenance unit.
Prodigio service manual
Version 1.0 en
MAINTENANCE
5) Rinse water tank and wipe dry with a
soft cloth.
6) Clean the coffee outlet regularly with a
damp cloth.
5.3 Cleaning procedure for milk frother
Risk of damage!
The inside of the jug is coated for easy cleaning.
Never use brushes and/or cleaning agents that contain abrasive or
aggressive, chemical components resp. solvents.
Do not put any part in a dishwasher.
Use only a damp cloth and a mild cleaning agent if necessary.
Keep Otter connectors dry (on swivel
arm and at underside of
milk frother).
The milk frother is
water-proof.
1) Remove milk frother from swivel arm.
2) Remove lid and whisk.
3) Remove seal from lid.
Version 1.0 en
4) Rinse and clean milk frother together
with whisk, lid and seal.
5) Clean outside of milk frother with a
damp cloth if necessary.
Prodigio service manual
35
TROUBLESHOOTING
6
6.1
After an initial inspection in accordance
with this check list, errors
are quickly found and corrected with the appropriate
measure.
Therefore, adhere to the
sequence of the check list.
Repair every occurring error
and work the check list
through until it is completed.
TR O U B L E S H O O T I N G
Check list for coffee machine
Check
Error symptoms
Measure /
repair work
Further measures /
repair work
YES - replace housing parts if
1.1 Housing parts bronecessary
ken or damaged
NO - continue
1 Check the coffee
machine for visiYES - replace power cord
ble damage
1.2 Power cord dam- NO - connect power cord of
aged
machine to the mains and continue
2.1 Cup support with
capsule container
and drip tray does
not remain in fitting
position
2.2 Slider malfunction
YES - empty the capsule conYES - slider does not close or tainer
YES - check that no capsule is
open properly
blocked inside the machine
NO - continue
NO - replace slider unit
2.3 Capsule is not
ejected correctly
YES - replace brewing unit
NO - continue
3.1 Water tank leaks
YES - replace water tank
NO - continue
2 Check mechanical components
3 Fill water tank
YES - check if drip tray has its NO - replace drip tray
metallic plate for magnetic
mounting
NO - continue
a) YES - power cord is okay
(loose connection)
YES - continue
NO - replace power cord
b) YES - pump works (press a YES - continue with point d)
coffee button)
NO - continue with point c)
c) YES - all three coffee but4.1 Coffee machine is tons are working
not working
(does not function)
YES - replace pump
NO - replace electronic device
(main PCB) and/or touch pad
PCB (MMI PCB).
d) YES - fine wire fuses or triac YES - replace thermoblock
on thermoblock defective
NO - continue
4 Plug in machine to
perform automatic self test
e) YES - wiring is okay
NO - continue with point 4.2
YES - thermoblock is hot
NO - self test ok - continue with
4.2 Maintenance light
point 4.3
(orange) is blinking
with 2 Hz
4.3 Maintenance light
(orange) permanently lit
36
Prodigio service manual
YES - replace main PCB (see
page 59)
NO - replace defective cables
YES - check / replace MMI
PCB (see page 49) and main
PCB (see page 59)
NO - replace thermoblock,
check / replace MMI PCB and
main PCB
YES - capsule container full or YES - empty capsule container
capsule ejection chute blocked or remove obstacle
NO - clean lenses of light barNO - continue
rier (see page 34)
Version 1.0 en
TROUBLESHOOTING
Check
5 Test Bluetooth®
function
Error symptoms
Measure /
repair work
Further measures /
repair work
a) YES - compatible device
with Nespresso App. has Bluetooth® mode activated and is
placed within a distance of
10 cm / 4 inch to the coffee
machine.
YES - continue
NO - try again and place compatible device with Nespresso
App. next to coffee machine
5.1 Pairing the
machine with a
compatible device b) YES - Bluetooth® mode of
coffee machine switched off
and Nespresso
App. does not work
YES - Reset coffee machine
(see page 21)
NO - Replace MMI board (see
page 49)
c) YES - pairing not possible YES - retrieve machine serial
after replacement of MMI PCB number from an original PCB of
the coffee machine.
and main PCB
5.2 Retrieve error code YES - check error code table
and begin with repair
with Nespresso
NO - continue
App
(see page 39)
YES - a) water system is empty YES - fill the water system
NO - continue
YES - b) coffee machine is cal- YES - descale coffee machine
cified
(see page 32)
NO - continue
6 Rinse coffee
machine
6.1 No water at coffee YES - c) pyramide plate
outlet
blocked
YES - d) flowmeter blocked
YES - replace brewing unit
NO - continue
YES - clean or replace flowmeter
NO - continue
YES - e) pump cannot produce YES - replace pump
sufficient water pressure
NO - continue
7 Measure coffee
7.1 Temperature is too
temperature durlow (below 83°C)
ing coffee preparation (see page 7.2 Temperature too
82)
high (over 89 °C)
8.1 Hose connections
leak
8 Check for leakage 8.2 Brewing unit leaks
and sufficient flow
rate
8.3 Rate of flow not
within standard
range (60-120ml in
30 sec)
9 Descale coffee
machine
(if necessary)
YES - descale coffee machine
(see page 32)
NO - continue
YES - replace thermoblock
NO - continue with point 8
YES - replace high pressure
connector
NO - continue
YES - replace brewing unit
NO - continue
YES - coffee machine is calci- YES - descale coffee machine
fied
(see page 32)
NO - continue with point 9
NO - replace pump
9.1 Coffee machine is YES - descale coffee machine
calcified
(see page 32)
NO - continue with point 10
YES - descale and rinse coffee
10 Check water tank 10.1 Particles of calmachine again to clean water
contents after descium and rust visicircuit (see page 32)
caling and rinsing
ble in water
NO - continue
10 Final cleaning
(see page 34)
No errors found according to
check list?
YES - inform customer to descale coffee machine periodically and to use the specified
descaling product only.
YES - for more information
please contact Nespresso
Service Division
End of check list
Version 1.0 en
Prodigio service manual
37
TROUBLESHOOTING
6.2
The milk frother is part
of the Prodigio&milk
coffee machine.
Check list for milk frother
Check
Error symptoms
1.1 Lid/seal broken or
1 Check milk frother
damaged
and accessory for
1.3
Whisk
broken or
visible damage
damaged
4.1 Milk frother is not
4 Place milk frother
working (does not
on swivel arm
function)
connector.
Attach whisk.
Plug in coffee
4.2 Abnormal noise
machine.
during preparation
Press start button
4.3 Milk frother does
briefly (hot milk
not switch off autopreparation).
matically
Measure /
repair work
Further measures /
repair work
YES - replace lid/seal
NO - continue
YES - replace whisk or spring
NO - continue
YES - a) coffee machine is
heating up
YES - continue
NO - continue with check list for
coffee machine
YES - b) connector on swivel
arm is ok (test it with another
milk frother)
YES - replace milk frother
NO - replace connector on
swivel arm (see page 54)
YES - replace milk frother
NO - continue
YES - replace milk frother
NO - continue
4.4 Inside of jug stays YES - replace milk frother
cold
NO - continue
5 Press start button
YES - replace milk frother
for at least 2 sec 5.1 Start button is not
(cold milk prepabacklighted in blue
ration)
6 Final cleaning
No errors found according to
(see page 35)
check list?
YES - for more information
please contact Nespresso
Service Division
End of check list
38
Prodigio service manual
Version 1.0 en
TROUBLESHOOTING
6.3
Machine error code table
Error code
Machine error / error level
Description
SPI communication error during firmware update or
serious electronic component failure
Upp voltage observation:
input short to ground or to VDD
1001
Electronic malfunction / serious error
1002
General malfunction / serious error
1003
Heating-up not complete / serious error Thermoblock timeout during heatup
1004
Heating-up not working / serious error
Upp voltage observation error
RESET state timeout
Use the Nespresso
App to get an error
code for troubleshooting
(see page 28).
This error code table
is for machine errors
only. See Nespresso technical website for a complete table.
No reaction from thermoblock
Motor BU current input short to VDD
Motor BU current input error
Motor moving BU timeout after direction has been
reversed
1005
Motor malfunction / serious error
Motor moving BU timeout while moving to end position the first time
Current measurement error
Voltage measurement error
1006
Pump overheat / safety timeout
The pump may overheat when brewing too many
coffees in a row. This error is due to an overheat
prevention mechanism. Wait a few minutes before
brewing the next coffee.
1007
Inappropriate temperature detected /
serious error
The thermoblock temperature is too high. Wait a few
minutes before brewing the next coffee. Repair if
error continues.
1008
1009
NTC1200 short to ground
Temperature sensor malfunction / seriNTC1200 short to VDD
ous error
NTC measurement error
Capsules container full or not present / Brewing while capsules container is full or not
harmless error.
present. The machines’ capsule container is not well
placed in the machine or the capsules container
capacity is exceeded. The same detector is used to
handle both cases.
End of machine error code table
Version 1.0 en
Prodigio service manual
39
REPAIRS
7
REPAIRS
These repair instructions
- are based on exploded drawings with position numbers combined with repair and
mounting tips,
- presuppose basic knowledge in repairing Nespresso coffee machines.
7.1
Safety instructions
Risk of fatal electrical shock!
Mains voltage inside the coffee machine.
Disconnect the mains plug before disassembly - the coffee machine
must be free of voltage.
Danger of burns!
Hot parts and water under pressure inside the coffee machine
(thermoblock in particular).
Let coffee machine cool down before disassembly.
Only use original spare parts from your official supplier for maintenance
and repair work.
7.2
Repair and mounting tips
These general advices are completed with specific repair tips in this chapter.
Additional information
The Prodigio coffee machine is shown for general repair procedures while the
Prodigio&milk coffee machine is shown solely for the repair resp. replacement of the
swivel arm with the Otter connector.
For components not mentioned in this repair chapter, refer to the chapter "Explosion
drawings and parts lists" on page 93.
Snap connections
Parts of the case and components of the coffee machine are connected screwless with
latches.
When loosening these latches, proceed with care and patience to avoid
causing any damage.
Position numbers are
subject to change
without notice.
Designation of spare parts
The components in the following illustrations are indexed with position numbers.
See separate spare parts list for corresponding spare part numbers.
Electrostatic discharge (ESD) protection
The service technician must observe basic ESD protection measures when installing a
new MMI board or electronic module.
40
Prodigio service manual
Version 1.0 en
REPAIRS
Wiring arrangement
Random changes in the wiring arrangement of the wired model version during a repair
can cause
- electromagnetic interferences,
- squeezed wires,
- insulation defects due to contact with hot parts,
- insulation problems if low and high voltage wires are not separated,
- interference with and damage to electronics.
Protective measures:
• Refer to wiring diagram when reconnecting cables and wires.
Residual water
•
If it is necessary to pull off hoses, hold ready a small receptacle and a towel to collect
and wipe away leaking water.
•
A special procedure is necessary to empty the fluid system of the coffee machine for
repair or shipment (refer to "Empty water system" on page 31).
7.3
Tools and accessories
With the following assortment of tools, all repairs described can be made:
1
2
3
TX 10
TX 20
3.5 mm
1) Torx screwdriver TX10 with safety pin
2) Torx screwdriver TX20
3) Flat blade screwdriver e.g. no. 01
(3.5 mm blade width)
Version 1.0 en
4
5
A bit holder with
appropriate bits can
also be used.
4) Pointed pliers
5) Side cutting pliers
6) Receptacle and towel to catch and
wipe away leaking water
Prodigio service manual
41
REPAIRS
7.4
General disassembly
This subchapter shows all necessary disassembly steps to gain access to the main
assembly (slider unit, brewing unit, thermoblock, pump and electronic device).
7.4.1 Prepare coffee machine for disassembly
1
4
3
Close brewing unit if
drop stop (7) has to
be removed (see page 47).
42
1. Check and remove any capsule from the brewing unit. Close the slider.
2. Empty the water system if hoses have to be detached for repair (see “Empty water
system” on page 31).
3. Disconnect power plug and let coffee machine cool down.
4. Remove all detachable parts from coffee machine:
Drip tray with cup support and drip grid, used capsule container, water tank with lid
and milk frother (Prodigio&milk only).
Prodigio service manual
Version 1.0 en
REPAIRS
7.4.2 Remove outlet cover
64
8
•
Press up outlet cover (8) and pull it out from front cover (64).
Version 1.0 en
Prodigio service manual
43
REPAIRS
7.4.3 Remove front cover
2
64
7
Take care not to
scratch the surface
and keep the front cover at
a safe place.
•
Reach into circular opening and release 2 latches of front cover (encircled).
•
Swing out front cover (64) at the bottom until it touches the drop stop (7).
•
Press up drop stop and continue swivelling the front cover (64) until the 2 hinges on
its top are released.
Assembly hint
44
•
Insert both hinges on top of front cover (64) into counterparts on blind (2) first.
•
Then swivel front cover downwards over drop stop (7) and snap it into place.
Prodigio service manual
Version 1.0 en
REPAIRS
7.4.4 Remove cover
1
6
15
40
•
Loosen 1 screw (40, Torx screw TX10 with safety pin) at the rear side of the cover
(1) - see detail.
•
Loosen 2 screws (15, Torx screws TX10 with safety pin) on underside of chassis (6).
Version 1.0 en
Prodigio service manual
45
REPAIRS
1
6
If the cover (1) is only
pushed backwards, 2
of its ribs (encircled) will
break.
46
•
At the bottom of the cover (1): Push both sides away from chassis (6).
•
Then push cover to the rear and upwards.
Prodigio service manual
Version 1.0 en
REPAIRS
7.4.5 Remove blind
57
2
73
5
1. Release 4 latches (2 on each side) with screwdriver and remove blind (2) from print
cover (5).
Take care no to damage the light guide
(57).
Assembly checkpoint
•
Check functionality of slider (73) if print cover (5) was removed subsequently.
Version 1.0 en
Prodigio service manual
47
REPAIRS
7.4.6 Remove drop stop
To dismantle the drop
stop, the brewing unit
must be closed.
Use a a cordless drill
driver connected to
the motor to close the unit
or, before dismantling the
machine, start a coffee
without a capsule and
remove the power plug during extraction.
34
7
48
•
Press drop stop (7) together by hand to release pivots.
•
Push drop stop underneath steam cover (34).
Prodigio service manual
Version 1.0 en
REPAIRS
7.4.7 Remove MMI board and light guides
54 + 3
60
5
60
60
63
81
1.
2.
3.
4.
Remove light guide (60) from MMI board (3) and light guide rack (63).
Remove second light guide (60) on other side of machine (not shown).
Unplug flat cable from electronic module (81).
Remove MMI board (3) together with silicon keypad (54).
Handle with care!
Light guide connectors on MMI board and
chassis are fragile.
Caution - Nespresso App can be locked!
Do not replace MMI PCB together with main PCB at once. Otherwise the
machine serial number, stored on the original PCBs, will be lost and
pairing resp. using the Nespresso App is not possible anymore.
.A replacement PCB (MMI PCB or main PCB) has no stored machine serial number
but will retrieve it from the other original PCB after switching on the coffee machine.
Assembly checkpoints
•
Use ESD protection measures when installing a new MMI board (3).
•
Check that flat cable is inserted in slot on print cover (5) - see red circle.
•
In case MMI PCB and main PCB have to be replaced together:
•
•
•
•
•
Replace first PCB only.
Plug in and switch on coffee machine. Wait for a short time.
Then switch off and unplug coffee machine.
Continue with repair and replace second PCB.
Check if pairing is still possible after repair.
Version 1.0 en
Prodigio service manual
49
REPAIRS
7.4.8 Remove lever and light barrier
67
63
62
68
•
Remove spring (68).
•
Remove lever (67) - see upper detail:
•
•
•
Press latch (circled in red) against lever and turn lever clockwise.
Pull out lever.
Remove light guide rack (63) together with lens (62) - see lower detail:
•
•
Release 2 latches of light guide rack.
Insert a finger in capsule ejection chute and press it against the lens to push out
the light guide rack.
62
63
Handle with care!
Do not scratch new
lenses.
50
•
Lever lens (62) out of light guide rack (63) with a small screwdriver.
•
Remove second light guide rack (63) and lens (62) on opposite side of coffee
machine the same way.
Prodigio service manual
Version 1.0 en
REPAIRS
7.4.9 Remove print cover
57
5
56
58
4
6
1. Check position of ratchets (4) for reassembly.
2. Release 4 latches (2 on each side) with screwdriver and remove print cover (5)
from chassis (6).
3. Remove light guides (56, 57, 58) from print cover if necessary.
Handle with care!
Ratchets (4) can drop
from the print cover and get
lost.
Assembly checkpoint
•
Incorrect positioned
ratchets (4) will block
the slider in the blind (2).
Align ratchets (4) on print cover (5) before assembly.
Version 1.0 en
Prodigio service manual
51
REPAIRS
7.4.10 Remove pivot bottom, water tank connector and
power cable
19
22
17
20
52
•
Release 5 clips on pivot bottom (19) with a screwdriver.
•
Remove pivot bottom from pivot top (17).
•
Remove water tank connector (20) from pivot bottom and pull off its hose from flowmeter (22) in electronic module.
Prodigio service manual
Version 1.0 en
REPAIRS
Do not try to remove
the cable bracket (18)
from the underside of the
coffee machine. The cable
bracket will then probably
be destroyed.
18
The cable bracket is
hooked at one side.
Place screwdriver like
shown in detail.
17
•
If necessary turn pivot top (17) to gain access to the cable bracket (18).
•
Remove the cable bracket (18) with a screwdriver.
The cable bracket
(18) is under tension.
Therefore, fix the cable
bracket with your finger
when unlatching it.
48
35
•
To remove the connection cable (48):
•
•
Unplug both insulated angled Faston receptacles with the help of a screwdriver
or pointed pliers from electronic module (see lower detail).
Unplug Faston receptacle of protective earth cable from thermoblock (35) - see
upper detail.
Caution - fragile
insulation on Faston receptacles.
Handle with care if connection cable (48) is to be
re-used.
Assembly checkpoint
•
Never re-use a damaged connection cable (48).
Version 1.0 en
Prodigio service manual
53
REPAIRS
7.4.11 Remove pivot bottom, water tank connector, power
cable and Otter connector (Prodigio&milk)
19
•
Loosen 3 screws (TX10 torx screws) from pivot bottom milk (19).
19
•
54
Release 5 clips on pivot bottom milk (19) with a screwdriver.
Prodigio service manual
Version 1.0 en
REPAIRS
17
19
22
18
20
•
Remove pivot bottom milk (19) from pivot top milk (17).
•
Remove water tank connector (20) from pivot bottom milk and pull off its hose from
flowmeter (22) in electronic module.
•
Remove cable bracket (18) - see procedure on page 53.
Version 1.0 en
Prodigio service manual
55
REPAIRS
82
48
•
Caution - fragile
insulation on Faston receptacles.
Handle with care if connection cable (48) is to be
re-used.
Remove connection cable (48):
•
Unplug both insulated angled Faston receptacles with the help of a screwdriver
or pointed pliers from electronic module (82).
35
•
56
Unplug Faston receptacle of protective earth cable from thermoblock (35).
Prodigio service manual
Version 1.0 en
REPAIRS
17
•
Remove 3 small Faston receptacles from Otter connector on pivot top milk (17).
•
Remove Otter connector by releasing 3 latches.
Version 1.0 en
Latches will break if
not unlocked very
carefully!
Prodigio service manual
57
REPAIRS
Assembly checkpoints
L
PE
N
58
•
Use marked cable guide to lay wires to Otter connector.
•
Check wiring of Otter connector.
Prodigio service manual
Version 1.0 en
REPAIRS
7.4.12 Remove electronic module (main PCB)
29
30
81
•
Remove isolation cover (29) from pump (30).
•
Unplug both Faston receptacles from pump terminal (see below).
•
Pull off low pressure tube (32) from flowmeter (22) - see below.
•
See detail: Press in locking wedge on electronic front cover (81) with a screwdriver
and pull out electronic module.
For pump removal,
refer to page 63.
35
38
50
32
30
22
81
48
•
Unplug cable connectors from electronic module (if not already done):
-
DC motor connector (38),
thermoblock (35): NTC / Triac signal connector, 2 Faston receptacles
flat cable (50) to MMI board (3).
Version 1.0 en
Prodigio service manual
59
REPAIRS
Assembly checkpoints
•
Never re-use damaged cables.
•
The flat cable connector (50) is fragile. Check orientation of connector before inserting.
7.4.13 Remove main board and flowmeter
Use ESD protection
measures when handling main board (23).
81
23
82
•
Open 4 clips with a screwdriver and dismantle front cover (81) and back cover (82)
of electronic module.
Caution - Nespresso App. can be locked!
Do not replace main PCB together with MMI PCB at once. Otherwise the
machine serial number, stored on the original PCBs, will be lost and
pairing resp. using the Nespresso App. is not possible anymore.
.A replacement PCB (MMI PCB or main PCB) has no stored machine serial number
but will retrieve it from the other original PCB after switching on the coffee machine.
60
Prodigio service manual
Version 1.0 en
REPAIRS
23
22
•
Press together flowmeter clips (see detail) and remove flowmeter (22) from main
board (23).
The flowmeter clips
get damaged during
disassembly.
Assembly checkpoints
•
Never re-use a flowmeter (22). Always assemble a new flowmeter.
•
In case main PCB and MMI PCB have to be replaced together:
•
•
•
•
•
Replace first PCB only.
Plug in and switch on coffee machine. Wait for a short time.
Then switch off and unplug coffee machine.
Continue with repair and replace second PCB.
Check if pairing is still possible after repair.
23
81
82
•
When assembling electronic module, check orientation of back cover (82) to main
PCB (23) and front cover (81).
Version 1.0 en
Prodigio service manual
If back cover (82) is
mounted upside
down it will block the swivel
arm.
61
REPAIRS
7.4.14 Remove high pressure tube
26
27
•
Remove the high pressure tube (27) by cutting through both connector clips (26).
Assembly checkpoint
26
•
62
Make sure that both connector clips (26) are mounted correctly.
Prodigio service manual
Version 1.0 en
REPAIRS
7.4.15 Remove pump
6
49
29
31
30
32
The first 2 disassembly steps are already
done if the electronic module has been removed.
•
Remove isolation cover (29) from pump (30).
•
Unplug both Faston receptacles from pump terminal.
•
Remove high pressure tube (see page 62).
•
Pull pump support (49) out of guides in chassis (6).
•
Lift pump (30) and pull off low pressure hose (32) together with pump support spring
(31).
Version 1.0 en
Prodigio service manual
63
REPAIRS
7.4.16 Remove brewing unit
Prerequisites:
•
Drop stop (7) is removed (see page 47).
•
The brewing unit is open.
Front view of chassis
(6).
6
Use the illustration as
reference to locate
the 4 latches in the coffee
machine.
64
The brewing unit housing (33) is fixed with 4 latches in the chassis (6).
Prodigio service manual
Version 1.0 en
REPAIRS
Rear view.
35
•
Press thermoblock (35) upwards with one hand.
•
Insert screw driver in gap beside motor.
•
Swivel screwdriver to release latch with a clicking sound.
•
Release marked latch with screwdriver carefully.
•
Swivel thermoblock upwards as far as possible.
Version 1.0 en
Push thermoblock
upwards until both
latches at the motor are
released.
Prodigio service manual
65
REPAIRS
35
•
Move thermoblock (35) gently back and forth to release the upper 2 latches. If
necessary use a screwdriver to release the latches.
33
35
Push brewing unit to
the backside and
upwards at the same time.
66
•
Remove brewing unit housing (33) with thermoblock (35) from chassis (6).
Prodigio service manual
Version 1.0 en
REPAIRS
7.4.17 Disassemble brewing unit drive
34
•
33
Release marked clip with a screwdriver and remove steam cover (34) from brewing
unit housing (33).
The brewing unit
must be open completely i.e. the guides are at
the rear and vertically positioned.
35
33
•
Lift up brewing unit housing (33) from thermoblock (35) and capsule cage (38).
Version 1.0 en
Prodigio service manual
In case of problems
turn worm gear till
end stop.
67
REPAIRS
X
38
41
47
X
•
Remove bush bearings (X), gear lever left (41) and gear lever right (47) from capsule
cage (38).
Assembly checkpoints
right side
47
41
left side not ok
•
68
left side ok
left side not ok
Note the correct mounting position for gear lever right (47) and gear lever left (41).
Prodigio service manual
Version 1.0 en
REPAIRS
7.4.18 Remove thermoblock from capsule cage
36
38
35
37
39
•
Loosen 2 screws (39, M3 socket screw) to remove thermoblock (35) from capsule
cage (38).
•
Remove thermoblock sleeve (36) and O-ring (37).
Version 1.0 en
Prodigio service manual
69
FUNCTION TESTS
8
FUNCTION TESTS
8.1
Safety instructions
Some function tests are performed with an energized, partly opened coffee machine.
Danger of electrocution!
Mains voltage inside the coffee machine.
Do not touch any live part while performing tests.
Danger of burns!
Hot parts and water under pressure inside the coffee machine.
Do not touch any hot parts while checking for leakages!
Always wear protective goggles.
8.2
Required equipment
8.2.1 Overview
Symbolic illustration
of function test equipment.
1
T2
T1
3
2
1
REL
HO
LD
MAX
MIN
T1
T1← T2
T2
°C/°F
4
5
MEA
SUR
E
P
COM
0Ω A
OP
K/ST
DJ
T
LIGH
LOC
1) Electronic thermometer
2) Timer
3) Measuring cup
Version 1.0 en
4) Test equipment for protective earth continuity test and protective insulation test
5) Flashlight
Prodigio service manual
81
FUNCTION TESTS
8.3
Measure coffee temperature
3
1
10 sec
4
2
1) Start coffee machine.
2) Place a measuring cup on cup support.
3) Preheat coffee outlet with hot water:
• Press Lungo button or close slider.
• Wait 10 sec.
• Press button again to stop or open
slider.
4) Empty measuring cup and place it
back on cup support.
5 - 10 mm
6
5
T2
7
T1
1
RE
L
HO
LD
MAX
MIN
T1
T1← T2
T2
8
°C/°F
5) Insert capsule (Cosi is best suited).
6) Press Lungo button again.
7) Wait until measuring cup contains
20 ml of coffee.
8) Then measure the coffee temperature
approx. 5-10 mm under the coffee outlet.
The coffee temperature should be
86 °C ± 3 °C (187 °F ± 5.4 °F).
82
Prodigio service manual
Version 1.0 en
FUNCTION TESTS
8.4
Tightness and leakage checks
This test must be performed:
- each time a part of the water circuit has been removed or replaced
- to confirm the tightness of the water circuit under pressure.
Dangerous mains voltage inside the coffee machine!
Do not touch any parts under voltage while checking for leakages!
Dangerous hot parts under pressure inside the coffee machine!
Do not touch any hot/pressurized parts while checking for leakages!
Always wear protective goggles.
8.4.1 Preparations
The prepared capsule
will not be perforated
by the blades and blocks the
water flow through the capsule cage.
1
1) Prepare a capsule for the tightness
and leakage checks: squash capsule
by pressing the top with the thumb.
4
2) Remove cover according to
"General disassembly" on page 42.
3
5
3) Fill water tank and place it on its arm.
4) Connect machine to mains.
Version 1.0 en
5) Turn machine ON by either pushing
the slider or pressing any coffee button. The machine heats up.
Prodigio service manual
83
FUNCTION TESTS
8.4.2 Test run
Do not run the
pump for more
than 30 sec.
30 sec. max
6
8
7
If machine stops during test, simply press
the Lungo coffee button
again.
6) Press the Lungo coffee button.
7) Completely open the slider and insert
the prepared capsule.
8) Close the slider.
The pump starts to build up a pressure
of approx. 20 bar.
Always wear protective goggles
during the test.
Note on point 9: A few
drops of leakage can
also appear if the capsule is
not tight. In this case redo
test with another capsule.
10
9
9) Check tightness of extraction chamber
(drops or leakage).
Let machine cool
down, if capsule is
blocked in the capsule compartment. Wait 10 to 15 min
until the pressure in the
brewing unit has dropped.
Then open slider and
remove blocked capsule.
12
11
84
10) Check connections under pressure for
audible and visible leaks.
Pay special attention to the high pressure connector.
Prodigio service manual
11) Insert capsule container with drip tray
and attach cup support.
12) Press Lungo coffee button to stop
pump and eject capsule.
13) Proceed with repair if needed or reassemble top cover.
Version 1.0 en
FUNCTION TESTS
8.5
Milk frother tests (Prodigio&milk)
Prerequisite
Use newly opened UHT, full fat or semi-skimmed milk at fridge temperature (+ 8 °C till
+ 10 °C) for the following tests only.
The disregard of this
specification can
affect the measuring results.
8.5.1 Measure hot milk temperature
Spattered milk
may cause burns.
Only use milk
frother with lid.
T2
T1
1
RE
L
HO
LD
MAX
MIN
T1
T1← T2
T2
°C/°
F
•
Prepare 240 ml hot milk in milk frother (use mixer without spring).
•
Measure temperature immediately after preparation in jug.
The milk temperature should be between + 60 °C and + 70 °C (140 °F till 158 °F).
8.5.2 Measure milk froth ratio
H2
H1
•
Prepare cold milk froth out of 120 ml milk in milk frother (use whisk with spring).
•
Empty content of milk frother into measuring beaker.
•
Determine the ratio x [%] of milk froth to liquid milk with following formula:
H2 – H1
x = --------------------- × 100
H1
Approximate values:
direct after preparation ..................................................................................x = 250%
60 sec after preparation................................................................................. x = 190%
Version 1.0 en
Prodigio service manual
85
FUNCTION TESTS
8.6
Protective earth (PE) continuity test
8.6.1 What is the protective earth continuity test about?
This test is only necessary
- for class 1 equipment (three-wire power cord with protective earth)
- after a repair whenever a general disassembly was performed.
Therefore all Prodigio models have to be tested after general disassembly, except
country-specific models (USA, Canada, Mexico and Japan) without a protective earth
connection (refer to "Wiring diagrams - Prodigio coffee machine" on page 70 and
following).
8.6.2 General
Legal regulation
In case of a repair/modification of the coffee machine, the repair centre is bound by law
to protect the user/consumer by
- restoring the regular condition of the appliance and
- performing the mandatory tests according to applicable national regulations (e.g.
DIN VDE 0701) or international regulations (e.g. EN/IEC 60335-1 “Safety of household and similar electrical appliances”)
Description
Protective earth continuity measurements are made between the protective earth terminal
of the power plug and the casing of the thermoblock and milk frother (Prodigio&milk only).
This test assures that
- the ground (earth) connection does not have an interruption between the power plug
and the thermoblock
- the permissible ground resistance is less than 0.3 Ohms (with a test current of
200 mA DC).
Test equipment
Ask Nespresso for
recommendations
about test equipment.
Special test equipment is needed that complies with the regulations to perform protective earth continuity measurements. Detailed requirements and tolerances must be verified by your local authorities or measurement supplier in any case.
Test report
For legal reasons a repair or test report should be prepared and filed with following information
- customer (name, address)
- type and serial number of coffee machine
- date of repair/test(s)
- performed test(s)/measuring value(s)
- used test equipment
- signature
86
Prodigio service manual
Version 1.0 en
FUNCTION TESTS
8.6.3 Test sequence
Danger of electrocution!
Do not plug in the coffee machine during the protective earth continuity
test.
Read and observe safety instructions in user manual of test equipment.
This test sequence is
only an example and
has to be adapted to applicable national standards
and regulations.
Symbolic illustration
of test equipment.
SUR
MEA
E
LOC
1) Connect black measuring cable to
ground pin of power plug with an alligator clip (example shown: Swiss
power plug).
OP
K/ST
T
LIGH
0Ω A
DJ
P
COM
2) Switch on test equipment and select
protective earth continuity test.
6
5
3
7
SUR
MEA
4
3) Remove water tank.
4) Remove maintenance unit.
5) Open slider.
hm
d
15 O sse
0.2 st pa
Te
J
E
OP
K/ST
LOC
T
LIGH
0Ω A
P
COM
D
6) Insert tip of red test probe up into capsule ejection chute and touch screw
head on the right-hand side.
7) Press "measure" button and read off
displayed resistance.
The resistance must be lower than
0.3 Ohm.
8) Fill in measured value in a test report.
Version 1.0 en
Prodigio service manual
By looking into the
capsule ejection slot
form below, the screw head
is visible on the right-hand
side. There is a conductive
connection between screw
head and thermoblock.
87
FUNCTION TESTS
Do not damage
inside coating of
milk frother jug
with the probe tip.
Milk frother test (Prodigio&milk):
1) Touch upper metallic part of milk
frother with red test probe.
2) Press "measure" button and read off
displayed resistance.
3) Repeat measurement on another
metallic spot of milk frother for verification.
The resistance must be lower than
0.3 Ohm.
4) Fill in measured value in a test report.
1.
2.
SUR
MEA
hm
d
15 O sse
0.2 st pa
Te
J
E
OP
K/ST
LOC
T
LIGH
0Ω A
P
COM
D
8.6.4 What to do if the protective earth continuity test fails
88
•
Check/measure ground wire connection of power cord; replace if necessary.
•
Check/measure ground connection terminal on thermoblock. Retighten terminal
screw if necessary.
•
Milk frother (Prodigio&milk): Clean ground contact on milk frother. Measure resistance between ground contact and jug of milk frother. Replace milk frother if necessary.
Prodigio service manual
Version 1.0 en
FUNCTION TESTS
8.7
Protective insulation test
8.7.1 What is the protective insulation test about?
This test is necessary
- for class 1 and 2 equipment (with/without protective earth)
- after a repair whenever a general disassembly was performed.
Perform the protective earth (PE) continuity test at first, if it is mandatory.
8.7.2 General
Legal regulation
In case of a repair/modification of the coffee machine, the repair centre is bound by law
to protect the user/consumer by
- restoring the regular condition of the appliance and
- performing the mandatory tests according to applicable national regulations (e.g.
DIN VDE 0701) or international regulations (e.g. EN/IEC 60335-1 “Safety of household and similar electrical appliances”).
Description
The insulation test
- assures that wiring and insulation of the coffee machine fulfil the normative requirements after a repair,
- rates the insulation capability of the coffee machine,
- is a very dangerous test because of a high test voltage (500 V DC).
For the insulation test, phase and neutral wire are shunted at the power plug. Then a
test voltage is applied between phase/neutral and selected parts of the coffee machine.
Test equipment
Special test equipment is needed that complies with the regulations to perform insulation
and withstanding voltage tests. Detailed requirements and tolerances must be verified
with your local authorities or measurement supplier in any case.
Ideally the test equipment has a national power socket for testing, so that the coffee
machine can plugged in directly. Otherwise a special shunt is necessary to connect the
phase and neutral pin of the coffee machine’s power plug.
Ask Nespresso for
recommendations
about test equipment.
Test report
For legal reasons a repair or test report should be prepared and filed with following information
- customer (name, address)
- type and serial number of coffee machine
- date of repair/test(s)
- performed test(s)/measuring value(s), test points
- used test equipment
- signature
Version 1.0 en
Prodigio service manual
89
FUNCTION TESTS
8.7.3 Test sequence
Danger of electrical shock/short circuit!
Do not plug in the coffee machine during insulation test.
Danger of electrical shock!
Do not touch tip of test probes.
Do not touch metallic parts of coffee machine during test.
Read and observe safety instructions in user manual of test equipment.
This test sequence is
only an example and
has to be adapted to applicable national standards
and regulations.
Use a short circuit
plug or special alligator clips etc. as substitute
for this test adapter.
Symbolic illustration
of test equipment.
1) Connect the phase and neutral pin of
the power plug together with a test
adapter (procured by the repair
centre).
2) Connect the black measuring cable to
the test adapter (see image).
3) Switch on test equipment and select
an insulation test voltage of 500 V DC.
SUR
MEA
E
OP
K/ST
LOC
Some test equipment
displays test passed
or failed instead of the insulation resistance.
T
LIGH
0Ω A
DJ
4) Touch magnet at rear panel inside of
coffee machine with red test probe.
5) Press "measure" button.
6) Read off displayed insulation resistance or test result.
The insulation resistance must
always be higher than 300 kOhm
(300,000 Ohm).
4
5
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FUNCTION TESTS
7) Touch slider with red test probe.
8) Press "measure" button.
9) Read off displayed insulation resistance or test result.
10) Insert tip of red test probe up into capsule ejection chute and touch screw
head on the right-hand side.
11) Press "measure" button.
12) Read off displayed insulation resistance or test result.
13) Touch ground pin of power plug with
red test probe.
14) Press "measure" button.
15) Read off displayed insulation resistance or test result.
13
By looking into the
capsule ejection slot
form below, the screw head
is visible on the right-hand
side. There is a conductive
connection between this
screw head and the thermoblock.
7
The insulation resistance must be
always higher than 300 kOhm
(300’000 Ohm).
16) Switch off test equipment or continue
with special tests for Prodigio&milk
coffee machine.
17) Short red with black test probe to
make sure that test voltage is discharged.
18) Fill in results in a test report.
10
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Special tests for Prodigio&milk coffee
machine:
1) Remove milk frother from swivel arm.
2) Insert red test probe in central opening
of Otter connector (ground connection).
3) Press "measure" button.
4) Read off displayed insulation resistance or test result.
2.
The insulation resistance must
always be higher than 300 kOhm
(300,000 Ohm).
3.
4.
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FUNCTION TESTS
Do not damage
inside coating of
milk frother jug
with the probe tip.
5) Place milk frother back on Otter connector.
6) Touch upper metallic part of milk
frother with red test probe.
7) Press "measure" button.
8) Read off displayed insulation resistance or test result.
5.
The insulation resistance must be
always higher than 300 kOhm
(300’000 Ohm).
6.
9) Switch off test equipment.
10) Short red with black test probe to
make sure that test voltage is discharged.
11) Fill in results in a test report.
7.
SUR
MEA
8.
hm
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15 O sse
0.2 st pa
Te
J
E
LOC
OP
K/ST
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LIGH
0Ω A
P
COM
D
8.7.4 What to do if the insulation test fails
Risk of damage!
A sparkover can damage the electronic device etc.
•
Assume that the coffee machine is defect after a failed insulation test.
•
Check thermoblock, especially connections.
•
Check temperature sensor (NTC).
•
Check wiring and locate fault. After fault clearance proceed with troubleshooting
check list (see page 36).
•
In case of doubt an insulation test on the milk frother alone can be carried out:
•
•
•
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Remove milk frother from swivel arm.
Touch phase and neutral contact spring at its bottom with one test probe successively and the metallic upper part of the jug with the other test probe.
If insulation test fails, replace milk frother.
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