WMF Series 8400 bistro User manual

coffee wakes up the world
Service manual
Model Series 8400 08.2011
Coffee Machine English

1 Customer setup 5
1.1 Setup program 5
1.2 Checklist for setup 6
2 Software service info 7
Serviceinfooverview ....................................................7
2.1 Where are the relevant service data displayed? 7
3 Machine data software 7
Machinedataoverview...................................................7
3.1 Counters submenu 7
3.1.1 Maintenancecountersoverview...........................................8
3.2 Service date submenu 8
3.3 Cleaning submenu 9
3.4 Error list submenu 10
3.5 Portioner submenu 10
3.6 Ground container submenu 10
3.7 Descaling filter submenu 10
3.8 Access control submenu 11
KeyOperator ..........................................................11
Descaling filter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Customercheck-up.....................................................12
3.9 Defaults Subemenu 12
3.9.1 ServiceBeverages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.9.2 FactoryBeverages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.9.3 ServiceCustomer....................................................13
3.9.4 CustomerService....................................................13
3.9.5 FactoryService/Customer..............................................13
FactoryMenu Service/Customer menu 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
FactoryMenu Service/Customer menu 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
FactoryService/Customer menu 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
FactoryService/Customer menu 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
FactoryService/Customer menu 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
FactoryService/Customer menu 6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
FactoryService/Customer menu 7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Table of machine-specific settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3.10 Additional setting possibilities on the laptop (KonfigTool) 18
Software update page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Care page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Servicedatespage......................................................18
PINpage..............................................................18
4 Software component test 19
Componenttestoverview................................................19
4.1 Brewer motor submenu 19
4.2 Portioner submenu 19
4.3 Valves submenu 20
4.4 Milk unit submenu 20
4.5 Steam boiler submenu 20
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4.6 Choc dispenser submenu 21
4.7 External pressure pump 21
4.8 Espresso pump 21
4.9 Ground container 21
4.10 Backup battery 21
4.11 Power supply submenu 21
4.12 Fan21
4.13 Display illumination 22
4.14 Control elements submenu 22
5 Service routines software 22
Service routines overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
5.1 First run up 22
5.2 Brewer calibration 23
5.3 Portioner calibration 23
5.4 Replacing control unit backup battery after F157 23
5.5 Descaling 23
6 Setting the beverages 24
Settingbeveragesoverview ..............................................24
6.1 Cup volumes menu 24
6.2 Changing recipes menu 24
e.g.,lattemacchiato ....................................................24
e.g.,milkchoc .........................................................25
Decaf: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
S-M-L. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
6.3 Addition sequence menu 25
6.4 Button allocation menu 26
6.5 Testing menu 26
6.6 Extensions menu 26
6.7 Settings menu 27
7 Error/event messages 28
7.1 Display messages 28
7.2 Error list/events 29
7.3 Reset reasons 34
7.4 Standby reasons 35
8 Mechanical settings 36
8.1 Setting basic grinder clearance 36
8.2 Adjusting pressure reducer 36
9 Maintenance concepts 30.000 brewings (standard capacity) 37
9.1 Customer check-up 37
9.1.1 Standard machine: Customer check-up kit 33.2809.6000 . . . . . . . . . . . . . . . . . . . . . 37
9.1.2 Milkpower machine: Customer check-up kit 33.2809.6100 . . . . . . . . . . . . . . . . . . . 38
Customer check-up routine. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
9.2 Service maintenance 1 40
9.2.1 Standard machine: maintenance set 33.2809.5000 . . . . . . . . . . . . . . . . . . . . . . . . . . 40
9.2.2 Milkpower configuration 33.2809.5100 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
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9.2.3 Additional maintenance set ECF: 33.2802.9000 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
9.2.4 Additional maintenance set choc/topping 33.2828.6100 . . . . . . . . . . . . . . . . . . . . . . 43
9.2.5 Service/Maintenance routine 1/30.000 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Additional tasks for machines with choc/topping configuration . . . . . . . . . . . . . . . . . 43
Additional tasks for ECF configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Additional tasks worn grinder disks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
9.3 Service maintenance 2 44
9.3.1 Standard machine and Steampower configuration:
Maintenance set 33.2809.4000. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
9.3.2 Service/Maintenance routine, 2 Years . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Additional tasks on machines with choc/topping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
AdditionaltasksonmachineswithECF.....................................46
Additional Tasks Worn Grinder Disk . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
9.4 Revision 46
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1 Customer setup
After setup, the service technician must note the
following statement in the assembly invoice:
“At the end of operation, had to be turned off at source.
The user manual and accessories were given to the
customer.”
The customer must acknowledge this with his signature.
1.1 Setup program
Condition:
Machine is reset to customer setup and connected to the
power supply.
Run display-guided setup.
This sets the following:
• Language
• Descaling filter yes/no
• Descaling filter range
• Descaling filter replacement mode
(customer or service)
• Brewer calibration
• Portioner calibration
Update software to current status
(only possible with laptop program “KonfigTool”)
Set beverages according to customer specifications
(Customer setting  recipes/buttons or by "KonfigTool“
 Beverage data)
Enter service point
(only possible with “KonfigTool”).
Save data  Defaults  CustomerService
Backup machine data on laptop
Checklist to the individual steps
see chapter 1.2
Detailed description see Service
chapter in the Training Manual
part 5 service.
Additional settings for recipes
after the service PIN is entered
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1.2 Checklist for setup
Update software to current status
(only possible with laptop program “KonfigTool”)
Set descaling filter (if existent) and filter range
(Service program  machine data or "KonfigTool“
 Machine configuration  counter page)
Set expert mode for customer (machine data  Access
control  expert or "KonfigTool“
 machine configuration  PIN page)
Perform Brewer calibration (service program  service
routines)
Calibrate portioners (service program  service
routines)
Recommendation:
Adjust milk temperature using nozzle and pinch valve
Adjust foam quality and temperature using nozzle and
under  Setting  foam quality
Set recipes or transfer the given standards to the
machine
Set button functions and beverages according to
customer specifications
(Settings or “KonfigTool“  beverage data)
Set cup volumes (Setting)
Tip: If the filling amount setting is too small for large
vessels, use the "pot" recipe
Set sequence of additions according to customer
specifications (recipes and buttons/additions)
Enter service point
(only possible with “KonfigTool”).
Save data in service memory (Service Program
 Machine data  Standards  CustomerService)
Backup machine data on laptop
Expert can confirm customer
check-up and filter exchange and
set the filter range in the Settings
menu.
Fine settings beverages under
changing recipes:
Amount of coffee powder
Amount of water
Amount of foam
Amount of milk
Foam quality
Brewing temperature
Additional settings after the
service PIN is entered
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2 Software service info
Service info overview
2.1 Where are the relevant service data
displayed?
• Next customer care date  Service
• Next filter change  Care  Info descaling filter
• Next maintenance  Care  Info maintenance
• Last cleanings (with date and time)
 Care  Journal
• Time since last cleaning  Care  Info cleaning
3 Machine data software
Machine data overview
3.1 Counters submenu
Service Info
Machine Data
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3.1.1 Maintenance counters overview
Counters relevant to service messages in the maintenance
menu.
Customer check-up
Maintenance 1 (30,000 Brewings)
Maintenance 2 (60,000 Brewings)
Counter relevant to service messages mixer in the mixer
menu
Mixer maintenance (60,000 cycles)
Special notices see machine data  Expert and machine
data  Key Operator
3.2 Service date submenu
The service date does not lead to a maintenance message.
Subsequently the following queries appear:
Reset by taping on the
appropriate line
Switching off the maintenance
messages with “KonfigTool”,
service dates page.
Switching off customer check-up:
machine data  Access control
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The following operations are started by tapping “OK”:
• Service date is set to the current date
• Cleaning counter is deleted
• Error list and the event memory (FIFO)
are deleted
• Descaling filter change is displayed and can be
deleted by tapping on it
• Maintenance counters are displayed and can be
deleted by tapping on them.
• Filter change is automatically set to current date
+ 1 year
• Mixer counter is reset (no maintenance message
due to the date)
• Customer check-up is set to current date
+ 6 months
• Service maintenance 1 is set to current date
+ 1 year
• Service maintenance 2 is set to current date
+ 2 years
• Revision is set to current date + 5 years
3.3 Cleaning submenu
Number of cleanings done and to be done
Number of mixer rinsings done
Number of milk system rinsings/Plug&Clean cleanings done
Time until cleaning request and forced cleaning
Delay of foamer rinsing after last beverage dispensing
Switch alarm signal on/off
Set foamer rinsing switch off and foamer rinsing delay in
the menu settings
Editing the maintenance
counters with “KonfigTool“,
service dates page
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3.4 Error list submenu
• Delete individual errors by tapping on the line
• Delete complete error memory by tapping on C.
3.5 Portioner submenu
e.g., right grinder:
Empty message via software, light barrier or none
Max. dispensing is 20 g (Set value 200 = 20,0 g), default 18 g
Reset alignment: set 100/100
(%) indicates wear, e.g., 130 means 30 % wear
Limit grinding cycles, increase value for ditting disks
3.6 Ground container submenu
(in g) in 50100: no full message, only with grounds/counter
(in g) in the example the message for emptying appears at 630 g
Current filling level
Set grounds counter via machine data
 FactoryService/Customer or with “KonfigTool”.
3.7 Descaling filter submenu
As in information menu customer or in service info
This resets the counter and the change message
Filter capacity in liters, message is displayed when value is reached
Error list see chapter 7.2
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3.8 Access control submenu
Extends menu PIN, but also gives access to parts of the service program
“yes” Filter change available in “care” menu“
“yes” Customer check-up available in “care” menu
Key Operator
The bistro! Key Operator is authorized to perform the
following service tasks of service level 1:
• Perform customer check-up
• Change descaling filter
• Descaling
The Key Operator also does repairs.
Service maintenance 1 and service maintenance 2 should
only be done by service personnel specially trained for
this machine.
To perform the tasks listed above the Key Operator has
access to the service routines, the component test as
well as to the counters “total number of brewings” and
“operating time”, to the “maintenance counters” (restricted
to customer check-up) and the “descaling filter” in the
machine data.
This access is protected by a special PIN (Key Operator).
The maintenance messages “customer check-up”, “service
maintenance 1”, “service maintenance 2” and “revision”
are displayed. They can be set with “KonfigTool”.
Unlike in the presto, no service messages for individual
components such as grinders, portioners and mixer are
displayed.
Customer check-up see
Maintenance schedules chapter
Change of descaling filter see
menu service date
Descaling see
service routines menu
Menu PIN Key Operator
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Descaling filter
The authorization is intended for customers who can
change the descaling filter themselves. In this case the care
menu features an item “counter reset”.
Customer check-up
This is set to “yes” if the machine is supposed to display
a request for performing customer check-up after
15,000 brewings. The menu item for resetting the counter
is then included in the care menu.
Customer check-up comprises the changing of foamer and
mixer cup with the respective nozzles and hoses.
3.9 Defaults Subemenu
3.9.1 ServiceBeverages
The beverage settings saved in the service memory are
loaded back into the customer memory and are then active
again.
3.9.2 FactoryBeverages
The beverage settings stored in the software are loaded
into the customer memory. The factory settings for button
functions and beverage settings are active.
See 9 Service chapter
Only the current beverage settings
will be overwritten.
The beverage settings in the
customer and service memories
will be overwritten.
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3.9.3 ServiceCustomer
All settings in the service memory are loaded into the
customer memory.
Use this option only in exceptional cases. Counters,
grinder correction values, and all beverage settings and
button allocations are loaded, overwriting the current
values.
3.9.4 CustomerService
Once the customer has accepted the settings, e.g., after
setup, the settings should be loaded into the service
memory.
3.9.5 FactoryService/Customer
The machine performs the self-test and automatically
detects the 24 V components. The subsequent menus are
pre-configured accordingly.
FactoryMenu Service/Customer menu 1
Heater power
Low water pressure
Mobile station
Heater capacity is set manually. This affects boiler supply
control and the allowed heating time.
Low water pressure is set manually. The pump sucks in the
supply water and also fills the boiler.
Mobile station is set manually. Only in connection with an
external pump controlled by the machine.
see Startup chapter
The heating power must
correspond to the installed
heating-element and the type
plate.
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FactoryMenu Service/Customer menu 2
Number of grinders with or without light barrier.
Preselect button for coffee powder from the decaf-grinder for recipe
S-M-L- buttons existent?
Configuration is set manually.
Decaf must be set manually. It is activated by a preselect
button above the hot water button.
S-M-L configures the buttons on the left side of the front
panel as preselect buttons for 3 different beverage sizes.
FactoryService/Customer menu 3
“Yes” - brewed coffee can be set as a recipe
Choc available?
Steampower steam valve
ECF is set manually. This enables the setting of recipes that
are brewed without pump.
Powder dosing (only choc possible) is detected
automatically
Steampower is set manually.
FactoryService/Customer menu 4
1 or 2 types of milk?
Standard or 2-hose solution?
Milkpower existent?
Milk 2 types are automatically detected at the milk
switching valve. Effect a preselect button for the 2nd milk
type above the hot water button.
Milk hose is set manually. This affects the air pump
control.
Milkpower is set manually (2nd steam valve is under
parallel control and has no controller connection of its
own).
Decaf / S-M-L
See operation chapter and
Software chapter Select menu
Setting in the User Manual
ECF
See Brewing system chapter in
Training Manual
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FactoryService/Customer menu 5
Ground container (GB) inside machine or grounds through the counter
Drip tray with/without drain?
Plug&Clean existent?
Ground container (GB) must be manually set correctly.
(Standard=internal).
Drain is set manually. This affects the message for
emptying the drip tray.
Plug&Clean is set manually.
FactoryService/Customer menu 6
Selector switch on 2nd level exiistent
Customer self-service?
Illumination existent?
2. level is set manually. The illumination of the selector
switch on the control panel is deactivated, the selection
option switched off. All buttons on the 2nd level are
blocked.
Self-service operation is set manually. This means that
the warm rinsing and barista fields do not exist on the
ready display, the beverage preselection is deactivated.
Illumination is set manually.
Plug&Clean see care chapter in
User Manual
see Settings chapter Self-service
operation and operating options in
the User Manual
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FactoryService/Customer menu 7
Accounting
Accept settings by tapping “ok”
Accounting (none, serial, MDB....) is set manually.
“OK“ is followed by the safety queries.
Safety queries under the adopted variation:
Standard beverages must be loaded for the following
changes::
Grinders, coffee, decaf. S-M-L, ECF, powder dosage,
Steampower and milk, as these settings affect the Button
allocations.
Reset the counters in exceptional cases only.
See “Machine-specific settings“
table on next page.
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Table of machine-specific settings
Area Details Default
Maintenance Service date
Customer check-up
Service maintenance 1
Service maintenance 2,
Revision
Applies to all maintenance
counters:
Number how often deleted
current date + 1 year
current date + 1/2 year
current date + 1 year
current date + 2 year
current date + 5 year
0
Cleaning Cleaning of machine
DONE/SCHEDULE
Choc cleaning DONE
Milk foam cleaning DONE
Cleaning mode
Foamer rinsing delay
Foamer rinsing alarm
Foamer rinsing existent
Rinsing interval
0/0
0
0
26/50
30 sec
Yes
Yes
with Plug&Clean: 2
without: 3
Portioner Empty message
max. dosage
Alignment data
Corrected value
Limit grinder disks
Software
Grinder: 180
Choc: 500
100/100
100
50000
Ground container Mode
Capacity
Contents until message
Fill level counter
internal
700
70
0
Grinder correction All Data 100 for both Grinders
Descaling filter Counter reading
Range
0
8000
Access control all PIN
Key Operator
Filter change
Customer check-up
0000
No
No
No
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3.10 Additional setting possibilities on the
laptop (KonfigTool)
Software update page
• Install languages selectable on the display
Care page
• Switch off forced machine cleaning
• Switch on forced milk cleaning
• Switch on forced choc cleaning
Service dates page
• Switch display of maintenance messages on or off
• Set limits for maintenance
• Set date for maintenance
• Enter contact info of service technician with phone
number
PIN page
• Block menu items
• Block PIN levels
• Set additional service PIN
• Set accounting unit statistic on “undeletable“
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4 Software component test
Component test overview
4.1 Brewer motor submenu
Run brewer to end switch
Run brewer down
Run brewer up
Ends switch: 0001 end switch contacted
Current [mA]: current consumption is displayed during
running
Pulses: current number of pulses is displayed (must vary
during brewer run)
4.2 Portioner submenu
Test right grinder
Test left grinder
Test manual insert
As the brewer accepts the coffee powder during the test
and discharges it after the test, the ground container
must be in place.
Ser vice Routines
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4.3 Valves submenu
Additional information in the tests:
• Condition of water pressure switch
• Condition of steam pressure switch
• Maximum current consumption of the valve(s)
The brewer must be functioning during brewing-valve
test as the brewer accepts the brewing water during the
test and discharges it afterwards.
4.4 Milk unit submenu
Additional information in the tests:
• Condition of water pressure switch
• Condition of steam pressure switch
• Maximum current consumption of the valve(s)
4.5 Steam boiler submenu
Additional information in the tests:
• Steam pressure: Ok = boiler pressure reached
• Electrodes: Indicates if the LW and PW electrodes have
contact or not
During the PW/LW electrode test the current capacitative
value is displayed
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