Reparaturanleitung Einbau-Kaffeevollautomaten IC3

R
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PA
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R IIN
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STTR
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Built-in fully-automatic coffeemaker
4.11
Water filter ...........................................................................47
5
FUNCTIONS ................................................. 48
Identification of danger levels............................................. 3
5.1
The perfect espresso ..........................................................48
1.3
Identification of damage to property .................................. 3
5.2
Operating principle .............................................................48
1.4
General safety instructions ................................................. 4
5.3
Diaphragm regulator with blow-off valve..........................49
1.5
Repair instructions .............................................................. 5
5.4
Reduction angle with blow-off valve (alternative) ............49
2
INSTALLATION ............................................. 6
5.5
Cleaning programme ..........................................................50
5.6
Temperature ........................................................................52
3
OPERATION .................................................. 6
6
REPAIR ........................................................ 54
3.1
Controls ................................................................................ 6
3.2
Changing the programming / standard settings ............. 12
6.1
Reading out internal appliance data .................................54
3.3
Cleaning .............................................................................. 19
6.2
Replacing the brewing unit ................................................55
3.4
Descaling ............................................................................ 20
6.3
Removing the appliance.....................................................59
6.4
Removing the base unit .....................................................60
4
COMPONENTS ........................................... 25
6.5
Installing the base unit .......................................................65
4.1
Structure ............................................................................. 25
6.6
General disassembly ..........................................................66
4.2
Flow meter .......................................................................... 26
6.7
Replacing the pump ...........................................................67
4.3
Heater and NTC-sensor ..................................................... 27
6.8
Replacing the thermal fuse ................................................68
4.4
Service door ....................................................................... 29
6.9
Remedial actions for “Error 8” - message ........................71
4.5
Brewing unit ....................................................................... 30
7
FAULT DIAGNOSTICS ................................ 74
4.6
Gear unit ............................................................................. 36
4.7
Ceramic valve (2-way valve) .............................................. 40
7.1
Incoming goods inspection ...............................................74
4.8
Hot water / steam nozzle.................................................... 42
7.2
Malfunctions........................................................................75
4.9
Coffee outlet ....................................................................... 43
7.3
System and error messages ..............................................81
4.10
Drip tray .............................................................................. 45
7.4
Service diagnosis ...............................................................87
7.5
Troubleshooting .................................................................94
1
SAFETY ......................................................... 3
1.1
Qualifications of service technicians ................................. 3
1.2
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Seite 1 von 105
7.6
Measuring the coffee temperature.................................. 100
8
TECHNICAL SPECIFICATIONS ............... 101
8.1
Rating plate....................................................................... 101
8.2
Power ................................................................................ 102
8.3
Temperatures ................................................................... 102
8.4
Dimensions and weight ................................................... 103
8.5
Filling amounts................................................................. 104
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1
SAFETY
1.1
Qualifications of service technicians
The described activities may be carried out only by service technicians
who have been instructed according to country-specific laws and
regulations and trained by BSH or an authorised establishment.
1.2
Identification of danger levels
Identification
DANGER
WARNING
CAUTION
1.3
Meaning
Imminent danger which may result in death or
serious injury if it is not avoided.
Potentially imminent danger which may result in
death or serious injury if it is not avoided.
Potentially imminent danger which may result in
minor injury or damage to property if it is not
avoided.
Identification of damage to property
Identification
NOTE
Meaning
Warning of potential damage to property
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1.4
General safety instructions
► Read repair manual and follow the instructions included in it.
► Proceed systematically and
troubleshooting and repair.
follow
the
instructions
for
WARNING
► When repair is completed, check the effectiveness of the protective
measures in accordance with VDE 0701 or the corresponding
country-specific regulations and perform a function test.
► Disconnect the power supply.
CAUTION
Death from electric shock!
Bodily contact with electric current may result in death!
DANGER
► Before commencing repairs, disconnect
appliance from the power supply.
► Wear protective gloves
the
if
► Ensure that the resistance of the protective
conductor does not exceed the standardised
values.
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Cut injuries!
Risk of being cut by exposed, un-deburred and sharp
edges!
► Wear personal protective equipment.
► Disconnect the power supply.
► Use residual-current-operated circuit-breaker
tests have to be conducted with the power on.
► Do not touch housing, frame or components.
► Before touching the appliance, disconnect from the
power supply.
If the test is not passed, clearly identify the appliance as not safe
and inform the operator in writing.
The test for the effectiveness of the protective measures must be
documented in a suitable manner. It is recommended to write
down the measured values.
Danger to life caused by electric shock!
If a fault occurs, exposed conductive components may
be live!
NOTE
Destruction of electrostatic sensitive devices!
An electrostatic discharge will destroy electrostatic
sensitive devices.
► Before carrying out any work, apply protective
system to components susceptible to electrical
discharge.
► Observe measures to protect the electrostatically
sensitive components.
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1.5
Repair instructions
Risk of scalding!
Risk of injury!
DANGER
► Connect and operate the appliance only in
accordance with the specifications on the rating
plate.
The milk frother for milk / hot water becomes very hot
during operation.
CAUTION
► The user may be put at considerable risk and injured
by improper repairs!
► Do not use the drawer and appliance as a shelf for
heavy parts and do not load.
► Carefully push back the drawer and appliance to
prevent fingers from becoming caught or crushed.
► Components become hot during operation. Before
commencing repairs, leave the appliance to cool
down.
CAUTION
► Do not reach into the grinder!
► Do not touch components in the appliance. Even the
modules can be live!
► If tests have to be conducted while the appliance is
live, ALWAYS use a residual-current-operated
circuit-breaker!
► The protective conductor connection must not
exceed the standardised values! This is essential for
personal safety and appliance function!
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► As a rule, printed-circuit boards are not repaired
but are completely replaced with original spare
parts. Exceptions are documented separately.
► Following each repair, conduct a leak and
performance test.
► Before commencing repairs, ALWAYS disconnect
the appliance from the power supply!
► Components become hot during operation. Before
commencing repairs, leave the appliance to cool
down.
► After use, leave to cool down before taking hold of
it.
NOTE
Components which are replaced haphazardly will
be damaged beyond repair!
Faultless components may be destroyed by unplanned
replacement of components.
► Before
replacing
troubleshooting.
components,
perform
► Check systematically
► Observe Technical Documentation
► Do not replace components without reason.
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2
INSTALLATION
See installation instructions.
3
OPERATION
3.1
Controls
3.1.1
Support plate with appliance
1
Drip tray with drip plate
2
Steam nozzle
3
Height-adjustable coffee outlet
4
Function selector
5
Control panel
6
Text display
7
Logic box with mains switch
8
Cover for water tank
9
Cover for bean container
10
Setting for degree of grinding
11
Powder slot flap
12
Service door
13
Support plate with front panel
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3.1.2
Control panel
1
Standby button
2
Coffee dispensing button
3
Filling quantity selector
4
Text display
4b
Function buttons for programming
5
Coffee strength selector
6
clean cleaning button
7
calc descaling button
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3.1.3
Mains switch
3.1.4
Standby button
The appliance is switched on and off via the mains switch on the back
of the logic box.
When the mains switch is switched on, the illuminated ring on the
Standby button lights up green.
The appliance is in standby mode and can be switched on by pressing
the Standby button.
Warning!
Risk of damage!
Do not actuate the mains switch while brewing coffee!
The Standby button switches on and starts the appliance or switches
it from brewing mode to standby.
When the Standby button has been pressed, the appliance heats up
and is then rinsed. The illuminated ring around the button flashes
during this process.
During the coffee brewing process the Standby button is assigned a
stop function. Press this button to end the current brewing process at
any time.
3.1.4.1
Switching on a cold appliance:
When the Standby button has been pressed, the appliance heats up
and is then rinsed. The illuminated ring around this button flashes.
Coffee cannot be brewed until the illuminated ring stops flashing.
3.1.4.2
Switching on a warm appliance:
If the appliance is switched on with the Standby button, a rinsing
process or self-test will not occur until the heater has reached the
operating temperature. The illuminated ring around the Standby
button is lit constantly. Coffee can be brewed immediately.
3.1.4.3
►
The appliance is not rinsed if:
it was still warm when switched on
or
►
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there was no coffee from the last brew before the appliance
was switched off.
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3.1.5
Function selector
3.1.6 Coffee dispensing button
Rotate the function selector to draw
coffee, hot water or steam:
1.
Drawing hot water
Water flows via hot water / steam
pipe.
2.
Drawing coffee
Water flows to the coffee outlet via
brewing module.
3.
►
Press the coffee dispensing button to start the espresso or
coffee brewing process.
During the brewing process the green illuminated ring flashes.
►
If the coffee dispensing button is pressed again, the coffee
brewing process ends early.
Drawing steam
The grinding process is ended, the brewing process is stopped, the
brewing unit is emptied.
Water flows via hot water / steam
pipe.
Ready to use mode is indicated again when the illuminated ring
around the coffee dispensing button is lit constantly.
Steam can be drawn after the
appliance has heated up to steam
temperature.
As soon as steam has been drawn,
coffee can be brewed again.
Risk of scalding!
►
Take hold of the steam pipe by the plastic part only.
►
Never point the steam pipe towards people.
►
When steam or hot water is released, the nozzle may
initially sputter.
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3.1.7
Filling quantity selector
3.1.8
This rotary knob is used to select the amount of liquid which is required.
Coffee strength selector
The amount of coffee to be ground can be changed by rotating
the coffee strength selector.
This setting affects the aroma and flavour, the caffeine and acid
content as well as the formation of the crema.
Single cups
Double cups
Small espresso
(approx. 25 ml)
2 small espressos
(approx. 50 ml)
Espresso
(approx. 40 ml)
2 espressos
(approx. 80 ml)
Small coffee
(approx. 80 ml)
2 small coffees
(approx. 160 ml)
Coffee
(approx. 125 ml)
2 coffees
(approx. 250 ml)
Large coffee
(approx. 160 ml)
2 large coffees
(approx. 300 ml)
XXL coffee
(approx. 220 ml)
2 XXL coffees
(approx. 360 ml)
Note:
The permitted filling quantity tolerance is ± 5 ml.
The filling quantities for 2 large coffees and 2 XXL coffees are not
the same as the double filling quantity for corresponding single cups.
Therefore aromatic coffee can still be brewed even when there is
a maximum amount of liquid in the appliance.
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Coffee quantity can be selected between “very mild” 7 g (0.25 oz) and
“extra strong” 14 g (0.50 oz).
very mild
approx. 7 g
mild
approx. 8 g
normal
approx. 9 g
normal plus
approx. 10 g
strong
approx. 12 g
extra strong
approx. 14 g
The amount of ground coffee powder is monitored in the brewing unit
and corrected by compensation of the grinding unit running time.
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3.1.9
Cleaning button
3.1.10 Descaling button
When the red illuminated ring around the clean cleaning button lights
up the appliance must be cleaned.
When the red illuminated ring around the calc descaling button lights
up the appliance must be descaled.
Coffee can still be brewed.
Coffee can still be brewed.
To start the cleaning cycle, press the clean button for approx. 3 sec.
To start the descaling cycle, press the calc button for approx. 3 sec.
►
►
Use cleaning tablets Mat.-no. 31 0575!
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Use liquid descaling agent Mat.-no. 31 0451!
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3.2
Changing the programming / standard settings
The appliance has been set at the factory so that coffee can be
brewed without any additional programming. To change these
standard settings, use the function buttons (<, P, exit, >).
Before the programming can be changed, the appliance must be in
brewing mode.
3.2.2
Displayed language
To change the displayed language to the required national setting:
►
Press and hold down button P for at least 3 sec.
►
Keep pressing button P until the language selection flashes.
►
Select the required language with the arrow buttons.
►
Press button P to save the language setting.
►
Press the exit button to leave language selection.
3.2.2.1
Displayed languages which can be selected
While programming, do not switch off the appliance. Otherwise
changes will not be accepted.
3.2.1
Programming
The following settings can be changed:
►
Language
►
Water hardness
►
Water filter
►
Temperature
►
Current time
►
Timer function
►
Energy-saving mode
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SPRACHE
DEUTSCH
LANGUE
FRANCAIS
LANGUAGE
ENGLISH
LINGUA
ITALIANO
SPRAK
SVENSKA
IDIOMA
ESPANOL
TAAL
NEDERL:
JASYK
RUSSKIY
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3.2.3
Water hardness
3.2.3.2
Determine the water hardness with the enclosed test strip or ask your
local water supplier.
Test strip for determining the water hardness, mat. no.: 05 6317
Hardness 1
3.2.3.1
220 litres
Hardness 2
100 litres
Hardness 3
70 litres
Hardness 4
40 litres
Setting the water hardness
Degrees of water hardness
Setting
German
French
1
1–7
1 - 13
2
8 – 15
14 - 27
3
16 – 23
28 – 42
4
24 – 30
43 - 54
Note:
It is important for the descaling programme that the
water hardness is set correctly. If external water
softeners are used in the domestic water system or
if filtered water is used, select HARDNESS
WATER 1
The appliance must be switched on and ready to use.
►
Hold down button P for at least 3 seconds.
Select HARDNESS WATER with the arrow buttons.
►
Press button P until the number in the display flashes.
►
Select the ascertained hardness with the arrow buttons.
►
Press button P to save the setting.
►
Press the exit button. Bach to standby.
The appliance is ready for use again.
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3.2.4
Water filter
3.2.4.1
Inserting the water filter
A filter is available as an optional accessory for the water tank. (Mat.no: 46 1732).
The filter is exhausted after approximately 50L ( 400 brewings) or at
the latest after 2 month. The filter must be changed for reasons of
hygiene and to prevent the appliance from becoming calcified
(appliance may be damaged).
The appliance must be switched on and ready to use.
►
Place a vessel with a capacity of at least 500 ml under the hot
water nozzle.
►
Press and hold down button P for at least 3 sec.
►
Select FILTER NO/OLD with the arrow buttons.
►
Press button P until the display flashes.
►
Select FILTER YES/NEW with the arrow buttons.
►
Press button P to save the setting.
►
Press exit button to return to brewing mode.
►
Rotate function selector to draw hot water. The appliance
rinses the filter automatically. Water is conveyed into the
collecting vessel (approx. 2 minutes). The water may be a little
cloudy, do not drink it!
►
If the system message TURN ON COFFEE is displayed, turn
function selector back to brew coffee.
First insert the filter and then change the appliance setting.
Note:
►
Do not insert the filter if the red illuminated ring
around the calc button on the appliance is lit.
The appliance must be descaled first.
►
Before descaling the appliance, take the inserted
water filter out of the water tank.
►
If the appliance is operated with the water filter
always inserted, the appliance should be
descaled once or twice a year even if there is no
message displayed.
►
If softened water from a domestic softening
system is used, a water filter is not required.
►
If the system message FILTER CHANGE is
displayed, immediately replace or remove used
water filters. If no new water filter is inserted,
adjust the water hardness.
►
To activate the filter and ensure correct function,
the inserted filter must be rinsed. Observe the
following points.
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The appliance is ready for use again.
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3.2.4.2
Changing the water filter
3.2.4.3
Replacing the water filter
The appliance must be switched on and ready to use.
The appliance must be switched on and ready to use.
►
Place a vessel with a capacity of at least 500 ml under the hot
water nozzle.
►
Using the screwing aid, unscrew the water filter in an anticlockwise direction.
►
Using the screwing aid, unscrew the water filter in an anticlockwise direction.
►
Press and hold down button P for at least 3 sec.
►
Screw in a new water filter.
►
Select FILTER YES/NEW with the arrow buttons.
►
Press and hold down button P for at least 3 sec.
►
Press button P until the display flashes.
►
Select FILTER YES/NEW with the arrow buttons.
►
Select FILTER NO/OLD with the arrow buttons.
►
Press button P to save the setting.
►
Press button P to save the setting.
►
Press exit button to return to brewing mode.
►
Press exit button to return to brewing mode.
►
Rotate function selector to draw hot water. The appliance
rinses the filter automatically. Water is conveyed into the
collecting vessel (approx. 2 minutes). The water may be a little
cloudy, do not drink it!
►
If the system message TURN ON COFFEE is displayed, turn
function selector back to brew coffee.
The appliance is ready for use again.
Check water hardness setting.
The appliance is ready for use again.
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3.2.5
Temperature
3.2.6
Current time
The current time can be input and saved. The time is required to use
the timer function.
The coffee temperature can be set or changed.
►
Press and hold down button P for at least 3 sec.
►
Select TEMP with the arrow buttons.
►
Press button P until the display flashes.
►
Select the required setting with the arrow buttons.
►
Press button P to save the setting..
►
Press exit button to return to brewing mode.
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The appliance must be switched on and ready to use.
►
Press and hold down button P for at least 3 sec.
►
Select the TIME with the arrow buttons.
►
Press button P until the hour display flashes.
►
Select the required setting with the arrow buttons.
►
Press button P until the minute display flashes.
►
Select the required setting with the arrow buttons.
►
Press button P to save the setting.
►
Press exit button to return to brewing mode.
The set time will be lost
►
if the mains plug is pulled out.
►
if the appliance is switched off with the mains switch.
►
if there is a power failure.
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3.2.7
Timer
3.2.7.2
This function can be used to set the time at which the appliance is to
switch on automatically.
►
►
3.2.7.1
The switch-on time remains saved even if there is a power failure or
the mains switch in the appliance is actuated.
To deactivate the setting:
Note:
►
Deactivating the setting
If the time has not been set , the switch-on time
cannot be programmed.
►
Press and hold down button P for at least 3 sec.
If the clock fails (e.g. after a mains interruption),
the switch-on time --;-- is displayed. The
switch-on time is not active. Not until the time is
reprogrammed, is the original switch-on time
redisplayed and is active.
►
Select the ON AT with the arrow buttons.
►
Using the arrow buttons, set the time to – – : – –.
3.2.8
Energy saving mode
Display range: 00;00 .....23:59 + – – : – –
Activating
This function can be used to set the number of hours after which the
appliance automatically switches to standby mode since the last brew.
The appliance must be switched on and ready to use.
►
Press and hold down button P for at least 3 sec.
►
Select the ON AT with the arrow buttons.
►
Press button P until the hour display flashes.
►
Select the required setting with the arrow buttons.
►
Press button P until the minute display flashes.
►
Select the required setting with the arrow buttons.
►
Press button P to save the setting.
►
Press exit button to return to brewing mode.
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The switch-on time remains saved even if there is a power failure or
the mains switch is actuated.
The appliance must be switched on and ready to use.
►
The appliance must be switched on and ready to use.
►
Press and hold down button P for at least 3 sec.
►
Select the OFF AFTER with the arrow buttons.
►
Press button P until the hour display flashes.
►
Select the required setting with the arrow buttons.
►
Press button P to save the setting.
►
Press exit button to return to brewing mode.
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3.2.9
Displaying of brews
The number of the already brewed espressos, coffees and ground
coffees is displayed here. The brews are counted automatically.
►
The appliance must be switched on and ready to use.
►
Press and hold down button P for at least 3 sec.
►
Select the NO.BREWS with the arrow buttons.
►
Press exit button to return to brewing mode.
3.2.10 RESET function
Possible from standby mode only!
►
Switch the appliance to standby mode by pressing the
Standby button.
►
Simultaneously press and hold down both arrow buttons for at
least 3 sec.
All 4 illuminated rings flash briefly at the same time
All changed memory settings are reset to the factory settings.
The display cannot be changed!
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3.3
Cleaning
Risk of electric shock
► Before cleaning the appliance, pull out the mains
plug!
► Never immerse the appliance in water!
DANGER
► Do not use a steam cleaner!
Risk of damage!
► Do not use any scouring agents!
WARNING
3.3.1
Daily cleaning of the appliance
►
Wipe the outside of the appliance with a damp cloth.
►
Remove water tank, rinse out and fill with fresh water.
►
Pull drip tray forwards and remove. Empty drip tray (1) and
dregs drawer (2) and clean with mild detergent solution.
Only degs drawer (2) can be cleaned in the dishwasher!
►
Thoroughly clean drawer contacts (3) on all sides and dry.
Note!
Coffee or water residue between the drawer contacts
may result in error messages.
►
Extract or wipe out the appliance interior.
If the appliance is cold when switched on, the appliance is rinsed
automatically.
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3.4
3.4.1
Descaling
The lime content in drinking water causes calcification of the thermal
block, the hose system and the valves in the appliance. This affects
the flavour of the coffee and reduces the service life of the appliance.
To ensure optimum quality, descale the appliance regularly.
If the illuminated ring around the calc descaling button lights up red
when the appliance is switched on and the request to descale the
appliance is indicated on the display, the appliance must be descaled
immediately.
Descale the appliance according to the following instructions,
otherwise the appliance may be damaged.
Warning!
►
Never descale the appliance with vinegar or
vinegar-based substances.
►
Do not interrupt the descaling programme.
►
Never drink the liquid
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Descaling alarm
The correct setting of the water hardness is important for the
descaling indicator.
Test strip for determining the water hardness, mat. no.: 05 6317
Hardness 1
220 litres
Hardness 2
100 litres
Hardness 3
70 litres
Hardness 4
40 litres
If water hardness 1 is set, the request to descale the appliance is
indicated after 220 l of water. (1° – 7° dH)
If water hardness 2 is set, the request to descale the appliance is
indicated after 100 l of water. (8° – 15° dH)
If water hardness 3 is set, the request to descale the appliance is
indicated after 70 l of water. (16° – 23° dH)
If water hardness 4 is set, the request to descale the appliance is
indicated after 40 l of water. (24° – 30° dH)
3.4.1.1
Degrees of water hardness
Setting
German
French
1
1–7
1–13
2
8–15
14–27
3
16–23
28–42
4
24–30
43–54
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3.4.2
Descaling program
Warning!
Never descale with water filter inserted!
3. ►
The descaling programme does not start until the FILTER NO/OLD
programming has been set.
or
►
The descaling programme lasts approx. 35 minutes. While the
descaling programme is running, processes and handling modes are
displayed.
3.4.2.1
To start the descaling programme, hold down the calc
button for at least 3 seconds.
►
Pull drip tray out of the appliance. Empty and re-insert
drip tray and dregs drawer.
2. This display is indicated irrespective of the actual filling of the
trays and ensures that the descaling cycle is not interrupted.
4. ►
►
Place an appropriately large collecting vessel under the
steam nozzle.
Rotate function selector to draw hot water.
5. The appliance is descaled automatically. Descaling solution
(approx. 250 ml) is conveyed in intervals into the collecting
vessel.
►
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Fill water tank with 0.5 l of ready mixed descaling
solution.
Warning!
If using descaling tablets, add two tablets. Observe the
dissolving time of the tablets (approx. 4–6 minutes)!
Starting the descaling program
1. ►
Fill water tank up to the mark (0.5 l) with warm water and
add descaling agent
Wait for the next display. (approx. 10 minutes)
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3.4.2.2
6. ►
►
Descaling program
Rotate function selector to coffee brewing process.
9. ►
Remove water tank, rinse out, fill with fresh water and reinsert.
10. ►
Empty collecting vessel and place back under the steam
nozzle.
Wait for the next display. (approx. 10 minutes)
7. The appliance is descaled automatically. Descaling solution
(approx. 250 ml) is conveyed in intervals into the drip tray via the
drainage valve.
►
Rotate function selector to draw hot water.
In doing so, the water tank is completely drained.
8. ►
Pull drip tray out of the appliance, empty and re-insert.
11. The appliance is rinsed automatically. Water (approx. 150 ml) is
conveyed in intervals into the collecting vessel.
►
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Wait for the next display. (approx. 4 minutes)
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3.4.2.3
12. ►
Descaling program
Rotate function selector to coffee brewing process.
15.
►
Carefully clean contacts of the drip tray on all sides
and dry. Ensure that there is no ground coffee residue
or water droplets between the tray contacts.
►
Re-insert drip tray and dregs drawer.
13. The appliance is rinsed automatically. Water (approx. 300 ml) is
conveyed in intervals into the drip tray via the drainage valve.
►
Wait for the next display. (approx. 4 minutes)
16.
The appliance is rinsed automatically.
The descaling process is complete. The illuminated ring around
the calc descaling button goes out.
14. ►
Pull drip tray out of the appliance and empty.
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The appliance is ready for use again.
If the descaling process is terminated prematurely, the
descaling alarm is not cancelled.
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3.4.2.4
The descaling program does not start:
The descaling programme does not start until the FILTER YES/NEW
programming has been set.
The display changes to FILTER CHANGE.
►
Change programming to FILTER NO/OLD.
Warning!
Never descale the appliance with the filter inserted!
The descaling programme does not start if the temperature of the
heater is too high.
►
Cool down the system by drawing off hot water.
When the required temperature has been reached, the descaling
process can be started.
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4
COMPONENTS
4.1
Structure
4.1.1
Overview, left side
1
Mains suppression filter
2
Diaphragm controller (pressure controller)
3
Mains transformer
4
Flow meter
5
Pump
6
Water tank valve support
7
Gear unit
8
Power electronics module
9
Control electronics module
10
Heating element
11
Service plug
Note:
From production date FD8701 on:
►
Implementation of a second thermal fuse on
heater.
►
Drip tray monitoring by an additional micro
switch.
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4.2
4.2.1
Flow meter
The composition of the coffee
mixture is a well guarded secret of
the
coffee
roasting
establishments. To ensure that an
excellent coffee can be produced
from this secret, the coffee beans
must be roasted carefully and the
coffee
machine
controlled
precisely – unless the dosage is
constant, the quality of the coffee
cannot be maintained.
The flow meter (A) is installed on the suction side between the water
tank (B) and pump (C). To ensure a precise measurement result, the
flow meter must be operated in a horizontal position.
Design and function
Water is pumped in from the water
tank and flows through the flow
meter.
Water is supplied via the
connection pipe in the lower
section of the housing (D).
Water is discharged via the
connection pipe in the upper
section of the housing (A).
The two halves of the housing are
sealed with a silicone seal (B).
The fan impeller (C) with the two
attached magnets is rotated by the
water flow.
The Hall-IC in the upper section of
the housing (A) generates square
pulses which measure the actually
required amount of water.
When installing the flow meter, ensure that the
direction of flow is correct. An arrow on the flow
meter housing indicates the direction of flow.
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4.3
Heater and NTC-sensor
4.3.1
Heater (Instantaneous water heater)
In the instantaneous water heater the water for coffee production or
hot water/steam purchase is heated up.
Therefore the water is pumped in a stainless-steel pipe (A), which is
cast in together with a heating resistor (B) in an aluminum block.
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4.3.2
Characteristic of NTC-sensor
Temperature
R min
R nom
R max
25 °C
9,78k
10,00K
10,22k
95 °C
0,77k
0,78k
0,80k
140 °C
0,232k
0,234k
0,237k
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4.4
Service door
The service door on the right side of the appliance provides access to
the brewing unit.
4.4.1
Door lock
The service door, behind the brewing unit is installed, is locked with a
bar.
Open the door by rotating the locking knob in a clockwise direction.
To ensure that the door is not opened without authorisation, e.g. with
a coin, the locking knob features an additional crosspiece (A). Open
the service door with a screwdriver PB 169/6 M4.
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4.5
Brewing unit
The brewing unit extracts the aroma, flavour and bitter agents from the
ground coffee and forms the crema.
4.5.1
Operating principle
Ground coffee pours through the filling shaft (A) into the brewing
chamber and is compressed. Hot water is introduced under pressure
via the water supply (B) and forced through the ground coffee. The
coffee which is produced is conveyed to the coffee outlet (C). To
optimise crema formation, the crema valve, which is situated above
the brewing head, opens when the pressure reaches 4.5 bar.
The brewing unit forms the central element in the espresso machine.
At the end of the brewing process the used coffee dregs are emptied
into the dregs drawer via the discharge chute (D).
4.5.1.1
Variable brewing chamber
The brewing unit consists primarily of the brewing chamber (A), into
which the ground coffee (7 g–14 g) is metered, and the springmounted brewing head (B) which moves upwards to seal the brewing
chamber.
.
The ground coffee is compacted and compressed in the brewing
chamber. When hot water is pumped into the brewing chamber, the
rising water pressure pushes up the brewing head, increasing the
volume in the brewing chamber. This improves extraction of the
flavours and formation of the crema.
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4.5.2
4.5.2.1
Sequence of the brewing cycle
Grinding and metering
Coffee beans are ground in the grinding unit (A). The ground coffee is
conveyed into the open brewing chamber via the funnel (B). The
amount of ground coffee generated depends on the running time of
the grinding unit. The brewing unit can process from 7 g to 14 g of
ground coffee.
Alternatively ground coffee can be poured in via the powder slot.
58300000172660_en_a – 12.04.13
4.5.2.2
Compression
The grinding unit stops. The gears control the brewing unit to the
upper end position. In doing so, the ground coffee is compressed in
the brewing chamber (C). The pressure applied to the ground coffee
causes the spring-mounted brewing head (D) to move up. The more
powder there is in the brewing chamber, the higher the brewing head
is pushed upwards during compression. The actual amount of powder
is measured by a slide which is connected mechanically to the
brewing head and, if required, corrects the amount during the next
brewing process.
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4.5.2.3
Brewing
The brewing process starts. The pressure pump conveys the water
into the brewing unit. The brewing head (D) is moved up by the water
pressure, thereby increasing the volume in the brewing chamber. The
hot water is mixed with the ground coffee longer and more intensively,
thereby improving extraction of the flavours and formation of the
crema. If the pressure inside the brewing chamber increases above
4.5 bar, the crema valve (E) opens and the coffee can flow to the
coffee outlet (F).
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4.5.2.4
Emptying
When the programmed amount of water is reached, the pump stops.
The pressure in the brewing chamber drops and the coffee dregs are
compressed into a solid cake. The drainage valve opens, pressure
and residual water are released into the drip tray. When the brewing
unit descends, the brewing chamber moves back to the initial position
(G) and the coffee dregs are emptied into the dregs drawer.
Seite 32 von 105
4.5.3
Compensation of the grinding unit running time
The amount of ground coffee which is generated by the grinding unit
depends on the running time of the grinding unit.
To ensure that the required amount of coffee is always ground, both
with different types of coffee, at different grinding settings and possibly
with worn grinding tools, the amount of ground coffee which was
actually conveyed to the brewing module (B) is measured.
The more powder there is in the brewing chamber, the higher the
spring-mounted brewing head is pushed upwards during compression.
A micro switch (µ) closes and opens as it moves past via a slide which
is connected mechanically to the brewing head.
The electronics module measures the number of the voltage changes
(connection A) caused by the switching processes which occur
immediately before the pressure pump switches on and can therefore
detect whether and how much ground coffee has been metered. This
value can be compared with the nominal value for the aroma setting.
Differences are adjusted by changing the running times of the grinding
unit.
4.5.3.1
Switching states
If there is a minimum amount of coffee (<7 g), the brewing head
does not move. The switch is not actuated. = Not enough coffee
beans.
ADD BEANS is displayed
Amount of powder >7 g – <10 g
(I)
Amount of powder 10 g
(II)
Amount of powder >10 g – <14 g
(III)
(IV) Amount of powder >14 g = Too many coffee beans. The
running time of the grinding unit must be reduced.
Special cases:
Too hot and too little Brewing is ended (dry discharge), there
powder before brewing
is no pumping. The brewing module
moves to the grinding position. Auto
cooling starts (several ml of water are
conveyed) and SYSTEM TOO HOT is
displayed
Too little powder during ADD BEANS is displayed and an
1st brewing process
additional time of 1.3 sec. is given.
Compensation is not active during this
and the next brewing process.
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4.5.4
Reinforced brewing unit
New, reinforced brewing units will be used from production date
FD8307.
4.5.4.1
Stripping-off clip
To improve functional safety, a stripping-off clip (B) was fitted to the
brewing unit (A).
Changes to components result in a higher pressure resistance in the
complete brewing unit as well as improved functional safety of the
entire machine.
Externally the new, reinforced brewing units can be identified by the
longer discharge chute on the brewing chamber.
(A)
Short discharge chute
= previous brewing unit
(B)
Long discharge chute
= new, reinforced brewing unit
This stripping-off clip is attached to the discharge chute on the
brewing chamber and moves closely past the brewing head (C) during
each brewing cycle. Coffee dregs which stick to the brewing head are
therefore removed mechanically.
Faults in the brewing cycle and during initialisation of the brewing unit
due to overdosage are therefore avoided.
Note: The control lever is a component of the brewing unit and is not
available separately. All current replacement brewing units feature this
new lever.
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4.5.4.2
Control lever
To improve functional safety, an additional rib (A) was fitted to the
control lever of the brewing unit.
A cleaning tablet which was inserted at the wrong time and did not fall
into the brewing chamber could become jammed near the control
lever of the brewing unit. This resulted in a blockage of the brewing
unit and error messages.
The additionally attached rib (A) prevents cleaning tablets from
sticking in this location and causing damage.
Note:
The control lever is a component of the brewing unit and
is not available separately. All current replacement
brewing units feature this new lever.
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4.6
Gear unit
Note: From production date FD8701 on the drip tray
is monitored by an additional micro switch in the
appliance. If the drip tray is pulled out, the micro switch
opens and interrupts the power supply to the gear motor
via the power module.
The gear unit is the drive for the brewing unit.
The gear motor is actuated at +/– 16 V DC and transfers its power via
gears to a drive shaft which is connected to the brewing unit.
4.6.1
Front housing
Micro switches (S1 and S2) are attached to the front housing of the
gear unit. These micro switches measure the position of the gears and
the brewing unit via a cam (B) connected to the drive shaft.
58300000172660_en_a – 12.04.13
4.6.2
Rear housing
On the rear housing section of the gear unit the drainage valve (B) is
attached with the expansion chamber (C). This valve controls the
passage of water from and to the brewing unit. The micro switch (D) is
actuated by the lock on the brewing unit. The drive shaft (E) is the
connection to the brewing unit.
Seite 36 von 105
4.6.3
Cam disc on gear unit
The position of the brewing unit is detected with two micro switches
S1 and S2. These two switches are able to define three positions.
When the appliance is switched on, the switch status of the micro
switches is checked and transmitted to the control module. The
brewing unit is moved to the basic position (= initializing).
Brewing position
Basic position
The brewing unit
is in the grinding
position and can
be filled.
The transmission
turns clockwise
until switch S2 is
closed by switch
cam (A) and
switch S1 is open.
Switch S1 is
activated by
switch cam (A).
Switch S2
remains open.
S1 ON
S2 OFF
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Drainage position
Once the brewing
process is complete,
the system is
drained.
For this, the motor
turns the cam disc
back by about 8°, so
that the drainage
valve is opened
again and the
remaining water can
run into the drip tray.
The brewing unit
is in the brew
position. The
transmission
motor stops.
Water can be
supplied and
coffee can be
brewed.
S1 OFF
S2 ON
Switches S1 and S2
are closed.
S1 ON
S2 ON
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4.6.4
Drainage valve
The drainage valve (B) connects the water inlet (A) to the brewing unit
and drains the system at the end of the brewing cycle.
4.6.4.1
Basic position
When the gears are in the basic position, the drainage valve is open.
The cam (E) of the actuator must then be in the illustrated position.
Warning!
Malfunction
The position of the actuator and therefore its cam (E)
is not specified permanently on the drive shaft.
The actuator may be in the wrong position. The
function sequence may malfunction.
When installing the gears, ensure that actuator is
in the correct position, as indicated under “Home
position”!
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4.6.4.2
Brewing position
4.6.4.3
Drainage position
When the gears move into the brewing position, the drive shaft rotates
with the actuator (D) in an anti-clockwise direction.
Once the brewing process is complete, the water pump switches off.
The brewing unit is moved upwards.
The transmission motor turns the input shaft with actuator (D) back
through about 8° and opens the drainage valve.
The connection to the drainage valve is closed with the water coupling
in the brewing unit. The switch cam on actuator (D) reaches into the
drainage valve control line and closes it. Water can flow from inlet (A)
through drainage valve (B) to outlet (C).
The pressure is relieved and the water can drain into the expansion
chamber and then into the drip tray. To prevent underpressure, air can
flow back through valve (B).
Then the transmission turns back in a clockwise direction until it is in
the basic position again.
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4.7
Ceramic valve (2-way valve)
By rotating the function selector on the front of the control panel, the
drawing of hot water (1), coffee (2) or steam (3) can be selected on
the ceramic valve.
4.7.1
Switch matrix
The micro switches S1 and S2 control the heater and pump via the
logic board. The micro switches are actuated by rotating the cam.
Two ceramic wheels which rotate against each other convey the hot
water or the steam to the hose connections for the drainage valve or
the steam pipe.
(A) Heating inlet
(C) To the drainage valve (brewing unit)
(D) To the steam pipe (drawing hot water and steam)
4.7.1.1
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Switch positions:
Steam:
S1 open
S2 closed
Coffee:
S1 closed
S2 open
Hot water:
S1 closed
S2 closed
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4.7.2
Water flow
The rotatable ceramic wheel releases the water or steam passage.
The corresponding openings in the lower wheel are connected to each
other via indentations in the upper wheel.
(A) Inlet
(B) Outlet to the steam pipe
(C) Outlet to the drainage valve (brewing unit)
Drawing steam
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Drawing coffee
Drawing hot water
Seite 41 von 105
4.8
Hot water / steam nozzle
Risk of burns!
The nozzle gets very hot.
► Do not touch the metal parts!
DANGER
(1) Sleeve with plastic grip
To dispense hot water or to froth
milk, move the sleeve downward
by the plastic grip.
To warm drinks with steam, slide
the sleeve upwards by the plastic
grip.
(2) Tip of nozzle with inlet
Sucks in milk and mixes with air
to make milk froth.
Note:
Every time you froth milk, clean the nozzle immediately
afterwards by dispensing hot water. Dried on milk
residues are difficult to remove.
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4.8.1
Function
The steam flows through steam pipe
(A) and the connected steam nozzle,
thereby
creating
underpressure
inside the steam nozzle.
This underpressure is balanced out
by fresh air flowing in through
opening (B) on the nozzle holder
and (C) on the tip of the nozzle.
If the nozzle is immersed in cold milk
to above side opening (C) and steam
is dispensed, fresh air flows in
through opening (B) on the nozzle
holder. At the same time, milk is
sucked into this air flow through
opening (C), mixed with the flow of
steam and emitted at the tip of the
steam nozzle.
The resulting circulation of sucked
in, mixed and emitted milk, warms
the milk up. The milk froth is created
by the mixing of the milk proteins
with air. The proteins are stable up
to approximately 76 °C.
They are destroyed by higher
temperatures and froth formation is
not possible then.
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4.9
Coffee outlet
The pump pressure conveys the brewed coffee from the brewing
unit to the coffee outlet.
The coffee runs into the coffee outlet (B) via a silicone hose (A). The
brewing system opens here and the coffee flows into the overflow
(C). The pressure escapes, the coffee flow abates and the ethereal
oils and fats dissolved in the coffee can froth up inside the coffee
outlet (D) and form the crema.
The coffee is distributed evenly from the overflow to the left and right
and then flows out through the outlet nozzles (E) into the cup.
Note:
► To ensure that the coffee flows out evenly from
the left and right, it is essential that the machine is
level.
► Soiling and deposits affect the coffee outlet.
Therefore, regularly run the automatic cleaning
cycle using the cleaning tablets (mat. no.
31 0575).
► Permitted quantity difference between the left and
right outlets must not be greater than +/- 15%.
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4.9.1
Coffee outlet with optimised overflow
An improved coffee outlet was introduced from production date
FD8606.
A newly introduced jug (1) in conjunction with changes to the
distributor (2) and to the distributor cover (3) ensure a more even
outlet with lower right – left tolerances.
The coffee outlet is available only as a complete, pre-assembled
spare part with or without chrome-plated outlet sleeves and replaces
the previous coffee outlet.
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4.10
Drip tray
4.10.1 Tray contacts
The tray contacts (A) detect whether
►
the drip tray has been inserted.
►
the drip tray has been filled with water.
If the drip tray has not been inserted, an electric circuit is opened.
TRAYS MISSING is displayed. When the drip tray has been inserted,
a tray contact closes the circuit. The appliance is ready for use again.
When the drip tray is full of water, the tray contacts (A) are inserted
into the water. The electrical resistance between the tray contacts
drops. EMPTY TRAYS is displayed.
If the EMPTY TRAYS display does not go out despite the trays having
been emptied, there may be residual water or moisture between the
contacts (transfer resistance caused by damp ground coffee).
Carefully clean trays in the area of the contacts with a soap solution
and then dry.
Note:
From production date FD8701 on the presence of the
drip tray is monitored by an additional micro switch in
the appliance actuated by a trigger on the drip tray. If
the drip tray is pulled out, the micro switch opens and
interrupts the power supply to the gear motor via the
power module.
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4.10.2 Detection springs
The drip tray features two tray contacts (A). When the drip tray is
pushed all the way into the appliance, the detection springs (B) catch
against the tray contacts from below.
Therefore the following states can be measured
►
Drip tray is missing and
►
Drip tray full of water
The detection springs are attached to a drawer which is accessible
when the rear panel of the appliance is opened.
4.10.2.1 Function:
Drip tray is missing: Detection springs 1 and 2 are not jumpered by
the tray contact I. The circuit is interrupted.
Drip tray inserted: Detection springs 1 and 2 are jumpered by the
tray contact I. The circuit is closed.
Drip tray is full of water: The tray contacts I and II are inserted into
the water. The electrical resistance between the tray contacts drops.
The circuit is closed via the detection springs 2 and 3.
Drip tray is empty: The tray contacts I and II are dry. The electrical
resistance between the tray contacts is infinite. The circuit between
the detection springs 2 and 3 is interrupted.
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4.11
Water filter
The filter cartridge is screwed directly into the water tank. The filter
cartridges can be used for all appliances belonging to this series.
Carbon hardness, contents (e.g. chlorine) which impair taste and
odour, heavy metals and other substances are reduced to protect the
machine. Important minerals and fluoride are retained.
4.11.1 Filtration when drawing water
The water required for the preparation of coffee is filtered directly
before use. The water is drawn in by fins in the lower area of the filter
cartridge, filtered by the granulate and conveyed out through the
centre of the water tank valve. (= Up flow principle)
4.11.2 Filter specifications
The filter capacity at 27° dH is approx. 50 litres (400 brews) or
2 months.
The filter filling consists of approx. 100 ml ion exchange resin and
silvered activated carbon in the ratio 4:1.
Filter diameter:
Filter length:
Filling volume:
Filter effect:
(Reduction if
following
substances
are in the
water)
58300000172660_en_a – 12.04.13
27–42 mm
175 mm
95–100 ml
Carbon
hardness
Important!
►
Follow the information in the operating instructions
for inserting or replacing the water filter!
Chlorine
►
Lead
Do not insert filter if the descaling display lights up!
First descale the appliance!
►
If the appliance is always operated with the water
filter inserted, descale as a precaution once or twice
a year!
Copper
Aluminium
Seite 47 von 105
5
FUNCTIONS
5.1
The perfect espresso
A genuine espresso is prepared according to a specific extraction
process in which the water is forced under high pressure through
finely ground coffee in order to release all the flavours.
The excellent quality of the result in the cup depends on the selection
and composition of the raw coffee from different countries of origin,
the degree of roasting, the fineness of the grinding and the extraction
method: Applied pressure, water temperature and extraction duration.
The sequences are monitored by sensors and microswitches. All
functions are controlled and interlinked via the logic module. All units,
such as motors, pump, heater, are supplied with power via the power
module.
A perfect espresso can be identified by its distinctive taste, intensive
flavours and a dense body, refined by a crema of perfect consistency.
5.2
Operating principle
Water and coffee beans are kept ready in the storage containers for
the preparation of coffee. When the product has been selected, the
coffee grinder begins to grind the beans. Ground coffee is metered
into the brewing unit. The coffee grinder stops after a time allocated to
the quantity. The brewing process begins when the brewing module
moves into the upper end position. When this position has been
reached, the water pump begins conveying water. Water is drawn out
of the tank via the flowmeter. The water flow causes the fan impeller
to rotate in the flowmeter, causing electrical pulses to be generated.
The running time of the pump is specified by the number of the
pulses. The pump conveys the water through the heater at a pressure
of 5 – 8 bar.
Depending on the selected product (coffee, hot water or steam), the
water is heated up to a temperature between 82 °C and 130 °C
before it is fed either to the steam pipe via the two-way valve or
conveyed into the brewing unit via the drainage valve.
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5.3
Diaphragm regulator with blow-off valve
5.4
Reduction angle with blow-off valve (alternative)
The water is drawn out of the water tank via the hose connection (A).
The water is drawn out of the water tank via the hose connection (A).
The water flows through the flow meter (B) and rotates the fan
impeller inside. This causes electronic impulses to be generated which
determine the amount of water actually conveyed.
The water flows through the flow meter (B) and rotates the fan
impeller inside. This causes electronic impulses to be generated which
determine the amount of water actually conveyed.
The pump (C) generates a pressure of 5–8 bar.
The pump (C) generates a pressure of 5–8 bar.
The diaphragm regulator (D) minimises pressure peaks and keeps the
pressure at a constantly high level. Vibrations in the entire fluid system
are reduced.
As soon as the pump starts, a counter pressure builds up via the
reduction angle (D). The pump starts more quietly and the pressure is
kept at a constantly high level. Vibrations in the entire fluid system are
reduced.
A fabric hose (E) feeds the water to the heater.
Too high pressure in the system is discharged by the blow-off valve
(F). It opens at approx. 9 bar. Discharged water (G) is then conveyed
into the drip tray via hoses.
Note: From production date FD8307 on a reinforced brewing unit has
been implemented so the blow-off valve is no longer necessary.
58300000172660_en_a – 12.04.13
A fabric hose (E) feeds the water to the heater.
Too high pressure in the system is discharged by the blow-off valve
(F). It opens at approx. 9 bar. Discharged water (G) is then conveyed
into the drip tray via hoses.
Seite 49 von 105
5.5
Cleaning programme
If the illuminated ring around the clean cleaning button lights up red
when the appliance is switched on and the message CLEAN UNIT is
displayed, clean the appliance as quickly as possible.
The appliance can still be used during the cleaning alarm. Coffee and
hot water can still be drawn.
5.5.1
Cleaning alarm
The cleaning alarm is indicated after either
►
200 brews (irrespective of the filling quantity)
or
►
160 rinsing cycles
5.5.2
Sequence of the cleaning programme
►
Rinse out the water tank and fill with fresh water up to the –
max mark.
►
Hold down the clean cleaning button for approx. 3 seconds.
Risk of damage!
For cleaning use only cleaning tablets mat. no.: 31 0575
(10 items in blister pack).
During the cleaning programme the illuminated ring around the clean
cleaning button flashes. The complete cleaning programme cycle lasts
approx. 15 minutes. Processes and handling instructions are displayed.
Warning!
Never interrupt the cleaning programme!
Never use descaling tablets or other agents!
Do not drink liquids!
The cleaning sequence starts, the illuminated ring around the clean
cleaning button flashes.
Observe displays!
Pull drip tray with coffee dregs drawer out of the appliance, empty and
re-insert.
Note: The cleaning programme runs automatically. Wait for the next
display (approx. 1 minute).
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Sequence of the cleaning programme
The brewing unit is moved into the brewing position. Approx. 60 ml of
water are conveyed via the coffee out-let for rinsing the system.
►
Pull drip tray with coffee dregs drawer out of the appliance,
empty and re-insert.
The display changes to alternating text
PILL IN DUCT – CLOSE THE LID
►
Open right appliance flap.
►
Open cover for ground coffee slot.
►
Drop cleaning tablet into the slot.
The cleaning process is complete, the illuminated ring around the
clean cleaning button goes out.
The appliance is ready for use again.
►
Close cover for ground coffee slot and right appliance flap.
►
Press the coffee dispensing button.
Note: The cleaning programme runs automatically. Wait for the next
display (approx. 10 minutes).
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5.6
Temperature
5.6.1
Temperature pattern
The temperature graph indicates the temperature pattern on the
heater during operation.
Note: After coffee has been
drawn, the appliance may be
briefly disabled from reheating.
As soon as steam has been
drawn, coffee can be brewed
again without waiting for the
appliance to cool down.
Coffee cannot be drawn after
steam has been drawn if there
is too little ground coffee in the
brewing unit. The brewing
process is terminated, there is
no pumping. The brewing unit
moves to the grinding position.
Automatic cooling starts (several
ml of water are conveyed).
I
II
III
IV
V
VI
VII
VIII
IX
Heating up
Brewing mode
Draw coffee (approx. 91 °C) / draw hot water (approx. 95 °C)
Reheating
Brewing mode
Heating up to draw steam (approx. 140 °C)
Steam ready
Drawing steam
Cooling after drawing steam
58300000172660_en_a – 12.04.13
A
B
C
D
E
F
Switch on, press Standby button
Press the coffee dispensing button or draw hot water
Stop drawing coffee / hot water
Turn function selector to steam, heating up process begins
Draw steam
Turn function selector to cafe, cooling down process begins
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5.6.2
Temperature pattern, drawing espresso (40 ml)
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5.6.3
Temperature pattern, drawing coffee (125 ml)
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6
REPAIR
Displays
6.1
Reading out internal appliance data
Internal appliance version
Software version
This function can display saved data:
Appliance is in standby mode.
►
Simultaneously press and hold down clean and calc for
approx. 4 seconds.
►
Displays indicate in succession the software version, the serial
number, the appliance number, the last service date and the
production date. Then the appliance switches back to standby
mode.
If the electronics module or the display does not support this function
in the event of a fault, the current state of the appliance can be
determined by the labelling on the rear of the display and the logic
board (control module).
Note:
For number of brews see under “Change programming, standard
settings”.
Serial number
V
Appliance number
V
Last service date
V
(e.g. Dec. 12th 2005)
Production date
V
(e.g. Nov. 30th 2005)
Then the appliance switches back to standby mode.
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6.2
Replacing the brewing unit
6.2.1
Removing the brewing unit
The brewing unit is permanently installed in the appliance.
The service door on the right-hand side of the appliance provides
access to the brewing unit by customers. During a service the brewing
unit can be released and taken out of the appliance.
6.2.1.1
To ensure that the door is not opened without authorisation, e.g. with
a coin, the locking knob features an additional crosspiece (A). Open
the service door with a screwdriver PB 169/6 M4 (commercially
available).
Opening the service door
The service door, behind the brewing unit is permanently installed, is
locked with a bar.
Open the door by rotating the locking knob in a clockwise direction.
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6.2.1.2
Releasing the brewing unit
When the service door has been opened, the brewing unit is
accessible. The brewing unit is secured in the appliance with three
locks.
Removing the brewing unit
(A) Remove 3 rubber caps with a flat screwdriver
(B) Loosen 3 locks by rotating them with a flat screwdriver
(C) Pull out brewing unit of the appliance
Symbols on the brewing unit indicate whether the lock is open or
closed.
Lock closed
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Lock open
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6.2.2
6.2.2.1
Replacing the brewing unit
Inserting the brewing unit
The brewing unit can only be inserted in the basic position.
►
The brewing chamber is located completely underneath the
filling funnel.
Inserting the brewing unit
(A) Insert brewing unit into the appliance
(B) Fix two locks by rotating them clockwise with a flat screwdriver
(C) Fix lock by rotating it counter clockwise with a flat screwdriver
(D) Insert three rubber caps into the notches
Symbols on the brewing unit indicate whether the lock is open or
closed.
Lock closed
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Lock open
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6.2.3
Greasing the brewing unit
During a service, the O-ring for the coffee outlet (A), the lip seal
surrounding the brewing head (B), the O-ring for the water inlet (C)
and the coupling for the input shaft (D) must be thinly greased with
food-safe special lubricating grease PARALIQ® GTE 703 Mat.-no.:
31 0574.
Note:
After replacing the O-ring for the coffee outlet (A) or for
the water inlet (C) they must be thinly greased with foodsafe special lubricating grease PARALIQ® GTE 703
Mat.-no.: 31 0574.
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6.3
Removing the appliance
Before removing the appliance, pull out the drip tray and
remove the water tank
Procedure:
1.
Release the appliance with the handle under the drip tray
and pull out forwards all the way.
2.
Pull mains plug (2) out of the socket on the installation
frame.
3.
Remove 2 securing screws (3).
4.
Pull support plate with appliance forwards (4).
5.
Grip support plate with both hands, pull forwards (5).
6.
Lift and remove from the telescopic rails (6).
After the base unit has been removed, it remains fully functional.
To continue disassembly, the base unit can be detached from the
support plate and front panel.
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6.4
Removing the base unit
6.4.2
Removing the coffee outlet
The base unit can be detached from the support plate and front panel.
Tools:
This is required to disassemble the appliance further.
►
Torx screwdriver T10
Procedure:
►
Slotted screwdriver
►
Long-nosed pliers
6.4.1
Removing rotary knobs
6.4.2.1
►
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Opening the coffee outlet
To open the coffee outlet, insert a flat-tipped screwdriver into
the catch on the underside of the outlet slide (1.), loosen the
catch (2.) and remove the front housing section of the outlet
slide (3).
Seite 60 von 105
6.4.2.2
►
Loosening the coffee distributor
First remove the silicone hose (A). Remove the coffee distributor (B) after detaching the catches (C).
6.4.2.3
Loosening the metal bands
The steplessly height-adjustable coffee outlet is braked by metal bands
(A) on which magnets press.
For subsequent removal:
58300000172660_en_a – 12.04.13
►
Press the outlet slide all the way down (1.)
►
Insert a flat-tipped screwdriver into the side openings in the
metal bands (A) and prise the metal bands out of the guide
pins by rotating the screwdriver (2.)
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6.4.2.4
►
Removing the metal bands
Using a flat-tipped screwdriver, press the metal band (A) downwards.
6.4.2.5
When the metal bands have been removed, the screw fittings are
accessible.
(A)
►
Remove the metal bands (A) and the braking magnets (B) with
long-nosed pliers.
Loosening the screw fittings
Attachment of the outlet slide
(2x Torx T10)
►
Loosen screws (A) and remove the complete outlet slide
forwards.
►
When the outlet slide has been removed, the adapter for the
panel screw fitting is accessible. Loosen 4 Torx T10 screws
and remove the adapter.
Installation is in reverse sequence.
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6.4.3
Removing the steam pipe
Tools:
►
Slotted screwdriver
Procedure:
1.
To remove the steam pipe, unscrew the frothing nozzle.
2.
Remove frothing nozzle.
3.
Insert slotted screwdriver into the recess (3) of the steam
pipe panel.
4.
Remove steam pipe panel forwards.
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5.
Rotate steam pipe (1) anti-clockwise as far as the
mechanical stop.
6.
Insert slotted screwdriver into the recess (2) and release the
catch.
7.
Rotate steam pipe further to the right (3).
8.
Pull steam pipe (4) out of the housing.
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6.4.4
Removing button for function selector
Tools:
►
Slotted screwdriver
Procedure:
6.4.5
Detaching the base unit
The base unit can be detached as a complete functioning unit from
the support plate and front panel.
Tools:
1.
Remove rotary knob of ceramic valve.
►
2.
Insert a flat-tipped screwdriver into the recess on the cover
ring and remove. To facilitate reinstallation, the cover has
a narrow (a) and a wide (b) catch.
Procedure:
58300000172660_en_a – 12.04.13
Torx screwdriver T15
1.
Remove 4 screws Torx T15 (2 on each side).
2.
Push base unit all the way to the back.
3.
Lift base unit out of the frame.
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6.5
Installing the base unit
6.
Push on the cover for the
steam pipe (3) and lock in
place.
7.
On the front panel in the
middle of the appliance
attach the clamping ring
for the coffee outlet with 4
screws, Torx T10.
8.
Attach outlet slide (6) with 2 screws, Torx T10.
9.
Insert 2 metal bands into the guides in the outlet slide and
insert 2 6x6 mm brake magnets.
10.
Insert distributor (5) into the outlet slide and lock in place.
Connect silicone hose and seal outlet slide with cover.
Tools:
►
Torx screwdriver T15
►
Special lubricating grease PARALIQ
31 0574
®
GTE 703 mat. no.:
Procedure:
1.
Insert base unit with display forwards into the drawer and push
in between the reinforcing brackets.
2.
Connect the reinforcing brackets to the base unit with 2 selftapping screws, Torx T15, on each side.
3.
Insert rotary knobs (1) for filling quantity and amount of powder
into the front of the control panel. Check that they function (can
they be turned ?)
4.
Engage the cover ring in
the upper right recess.
The correct installation
location is specified by
a narrow (a) and a wide
(b) catch. Connect the
rotary knob for the
ceramic valve (2) and
check that it functions
(can it be turned ?)
5.
Replace O-rings on the steam pipe and lubricate sparingly with
food-safe special lubricant PARALIQ® GTE 703 mat. no.:
31 0574. Insert steam pipe into the lower right recess and
rotate clockwise until a click is heard. It is then fully engaged.
Check the steam pipe!
Move steam pipe all the way to the left and right: The inner
holder of the steam pipe must not rotate with the pipe.
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6.6
General disassembly
Risk of electric shock!
Pull out mains plug before disassembly.
Appliance must not be live!
DANGER!
Tools:
►
Torx-Screwdriver T10
6.6.1
Procedure:
1.
Remove the water tank (A) from the appliance.
5.
Remove back panel (E) to rear.
2.
Remove the aroma protection cover (B) from the bean container.
6.
Remove upper section of housing to rear and up.
3.
Open and remove the ground coffee flap (C). To do this, open
the flap and pull it up.
7.
Remove housing side sections (G) by pulling them up.
4.
Loosen 8 Torx T10 screws (D) on back panel (E) of appliance.
Note!
When removing the back
panel take care of the supply
cable to the mains switch!
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6.7
Replacing the pump
Tools:
►
Pliers
►
Slotted screwdriver
6.7.1
Procedure:
1.
Disassemble the appliance as described in the "General
disassembly" section.
2.
Remove the retaining clip (1), hose (2) and O-ring (3).
3.
Remove inlet hose (4) from the pump.
4.
First, pull the pump (5) out of the rubber holder (6) on the side
of the inlet hose.
5.
Release the angled hose mount fitting (8) from the pump and
pull the pump out of the second rubber holder (7).
6.
Unplug electrical connections from the pump.
7.
Replace the faulty pump.
8.
To reassemble, proceed in the reverse order of disassembly.
Note the pin assignment of the pump in the wiring diagram.
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The O-ring must be replaced with a new one every
time a fluid connection is opened!
Seite 67 von 105
6.8
Replacing the thermal fuse
The thermo cut off element (TCO) is a safety element
which is used to prevent damage caused by the heater
overheating. To ensure correct function, it is essential to
install the thermal fuse properly.
► Whenever the appliance is repaired, check as a
precaution that the thermal fuse is in perfect
condition and is correctly installed!
6.8.1
6.8.3
1
2
3
Installation location
Screw with circlip
Installation bracket
Heater
Checking an installed thermo cut off element:
The following points must be checked:
►
►
►
►
Position and attachment of Teflon hose (must be firmly
anchored)
Position of thermo cut off element (centred under installation
bracket)
Quality of the cable connections
Bend correct
Installation bracket is firmly attached
6.8.2
Component
►
The thermo cut off element is supplied as a pre-assembled
component. (Wire colour and type may deviate in reality).
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6.8.4
Generally
6.8.5
How to proceed in repair case
The thermo cut off (TCO) element is a safety element, which will
protect the appliance and its surrounding against serious damaging
based on an overheating of the heater.
The following listed parts of the heater must be exchanged in any
case before the failure analysis will be continued:
► Both thermo cut off elements (complete with wires)
If a thermo cut off element will be defect, please take special care
during the repair to eliminate also the root cause of the overheating.
► Temperature sensor (NTC)
The assembling and exchange of the thermo cut off element must be
done accordingly to the following instructions.
► Plastic fluid connectors (including seal ring) at heater inlet and
outlet
The heater itself must not be exchanged in any case. But you have to
ensure, that the heating element will not be damaged.
The control of the heating element must be done by measuring the
power consumption during operation. The respective rated values of
the power consumption and voltage must be taken from the
declaration on the heater itself.
Heater will become hot during measurement!
► Never touch the heater during measurement!
► Cool down the heater manually before repair!
DANGER
The measured power consumption must be within a tolerance of +/5% to the nominal power consumption (measured at nominal voltage).
Maximum acceptable temperature of 300°C on heating element must
not be exceeded during measurement!
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6.8.6
Installing / replacing the thermal fuse:
► After removing the defective thermal fuse,
comply with the following new steps to ensure
correct installation:
1.
2.
3.
4.
5.
►
►
►
6.
Check installation position for heater (no dirt or projecting
edges permitted).
Check installation bracket (no dirt or sharp edges permitted).
Check whether it is the correct type of thermal fuse (according
to wiring / circuit diagram).
Position Teflon hose over the thermal fuse, ensuring that none
of the electrically conductive parts remains uncovered (same
as the illustrated example of the thermal fuse, slight kinking is
used to fix the hose).
Before installation, bend connections of the new thermal fuse
according to the thermal fuse to be replaced. This must be
done with a suitable pair of flat nose pliers. In doing so,
comply with the following points:
Bend must be at least 5 mm from the housing of the thermal
fuse.
Teflon hose and thermal fuse must not be damaged.
Connections may be bent 1 x only.
7.
8.
9.
10.
Insert installation bracket into the designated guide. (Ensure
that the bracket is inserted according to the picture)
Attach installation bracket with the corresponding screw and
circlip.
Following installation, check that the installation bracket on the
side of the thermal fuse is not situated on the heater
(according to following picture).
Connect thermal fuse wires to the correct terminals in the
appliance.
Position thermal fuse on the mounting surface of the heater,
ensuring that the installation bracket is in the centre of the
thermal fuse housing (attention: note original position).
Important!
Installation bracket must not be situated on the
heater
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6.9
Remedial actions for “Error 8” - message
6.9.2.2
6.9.1
Causes of “Error 8” message
To improve functional safety, a stripping-off clip (B) was fitted to the
brewing unit (A).
The brewing unit initialisation has failed. The brewing unit cannot be
moved into the upper end position.
This may be due to several causes, e.g.:
►
Incorrect operation (ground coffee filled with too much preground coffee or whole coffee beans)
►
Incorrect operation (cleaning tablets added at the wrong time)
►
Wrong coffee settings (too much, too finely ground coffee)
►
Wrong grinding unit setting (grinding unit not adjusted accurately enough)
►
From production date FD8701 on: Micro switch for drip tray
monitoring is not actuated (wrong or defective drip tray
inserted). Power supply for gear motor is interrupted. Brewing
unit cannot be moved.
6.9.2
Remedial actions
6.9.2.1
Stripping-off clip
This stripping-off clip is attached to the discharge chute on the
brewing chamber and moves closely past the upper brewing filter (C)
during each brewing cycle. Coffee dregs which stick to the brewing
filter are therefore removed mechanically.
Faults in the brewing cycle and during initialisation of the brewing unit
due to overdosage are therefore avoided.
Note: The stripping-off clip is a component of the brewing unit and is
not available separately. All current replacement brewing units feature
this stripping-off clip.
Cleaning the upper brewing filter
If the fault message does not go out when the appliance is switched
off and on again, disconnect the appliance from the power supply and
clean the upper brewing filter (C) in the brewing unit.
It is not necessary to remove the brewing unit for this process.
►
Pull out and remove the drip tray.
►
Insert a damp cloth into the drip tray duct from the front on the
right, pull upwards and clean the brewing filter by hands.
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6.9.2.3
Fin on the control lever of the brewing unit
It is possible that a cleaning tablet which is dropped in too early may
stick in the area of the control lever for the brewing unit. This results in
a blockage of the brewing unit and in the Error 8 message. In the
worst case this may also cause the lever to jump out.
6.9.2.4
“Cleaning process” sticker
Information sticker to avoid damage caused by adding the cleaning
tablet at the wrong time is stuck to the inside of the right appliance
flap.
Therefore a fin (A) is also attached the control lever.
The information stickers are available as a spare part for service.
The control lever is a component of the brewing unit and is not
available separately. All current replacement brewing units feature this
new lever.
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6.9.2.5
Replacement ground coffee duct
To optimise filling of the brewing unit, the ground coffee duct and the
grinding unit funnel have been reworked.
To ensure that the ground coffee falls into the middle of the brewing
chamber, the stop edge (c) was moved towards the centre by 2 mm.
The corners (a) and the side panels (b) have been optimised in such
a way the ground coffee is stopped smoothly. This is important in
order to meter an exact amount of ground coffee.
6.9.2.6
Plug insulation on gearbox microswitch
During installation and maintenance there is a risk that the plug-in
contacts of the micro switches may be bent while work is being carried
out on the gearbox. A short-circuit may occur. This results in malfunctions and the Error 8 fault message (initialisation fault).
By moving the stop edge on the grinding unit funnel, the opening for
the cleaning tablet is reduced. This is compensated for by the rounding of the filling edge (d) on the ground coffee duct.
This can be avoided by using an insulating nozzle (mat. no. 42 8267)
for each micro switch.
In the event of a service the modified components – ground coffee
duct and grinding unit funnel – should both be replaced.
Module consisting of a ground coffee duct and grinding unit funnel is
available under mat. no. 49 6369.
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7
FAULT DIAGNOSTICS
4. Fill water tank
7.1
Incoming goods inspection
►
Water tank leaking?
This receipt check enables you to rapidly locate faults on the
machine and to initiate appropriate repair actions.
5. Coffee preparation without coffee
►
Open and close ground coffee lid, are messages indicated?
►
Follow the sequence in the table.
►
►
Repair any faults and repeat the repair routine to the end.
Press the coffee dispensing button. Is water running out of the
coffee outlet?
1. Check machine for visual damage
6. Coffee preparation without beans
►
Housing part broken, damaged or deformed?
►
Check clockwise rotation of the grinding unit.
►
Power cord or mains plug damaged?
►
Brewing stops, is “Add beans” message indicated?
►
Has the customer opened the appliance?
7. Check tank sensor
2. Check the mechanical elements
►
►
Drip tray with dregs drawer clean, inserted.
8. Hot water preparation
►
Does function selector move easily?
►
Ground coffee lid in place, closed?
►
Rotate function selector to draw hot water.
►
Is the pump functioning?
3. Switching on the appliance
►
Is hot water running out of the steam pipe?
►
Switch on the appliance with the mains switch.
9. Steam generation
►
Is illuminated ring on the “On/Off” button lit?
►
Switch on with standby button, appliance initialised? Conduct
drawer test with original tray.
►
Rotate function selector to draw steam. Approx. 30 seconds
until clock timing regular?
►
Is steam flowing out of the steam pipe?
►
►
Insert test drawer, appliance rinses independently. Are
illuminated rings on the standby and coffee dispensing
buttons lit?
Remove water tank, is “Add water” message indicated?
10. PC service diagnosis
►
Conduct input diagnosis.
How long does the machine require to heat up, rinse?
(Standard time approx. 70 sec.)
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7.2
Malfunctions
7.2.1
Drawing coffee
Complaint
Cause?
Remedial action
Coffee temperature too low
►
►
Pre-warm cup or rinse out with hot water.
Heat milk.
Brewing system not pre-warmed (1st coffee ►
brewing process after appliance switched on),
low amount of liquid (e.g. espresso)
Pre-warm brewing system; to do this open
and close ground coffee duct flap and start a
coffee brewing process.
►
Rotate function selector briefly to draw
steam in order to increase the temperature.
(Measure coffee temperature ►
5–10 mm under coffee outlet!)
Coffee temperature too high
Coffee has too little aroma
58300000172660_en_a – 12.04.13
Cold cup or cold milk in the cup
►
Appliance calcified
►
Descale.
►
Heater has heated up to steam temperature
►
Cool down heater by drawing hot water
►
Replace NTC temperature sensor
►
Tighten NTC temperature sensor
►
NTC temperature sensor defective
►
NTC temperature sensor not screwed on
correctly
►
Logic module defective
►
Replace logic module
►
Grinding unit setting not optimum
►
Adjust grinding unit setting. (Change degree
of grinding only while the grinding unit is
running)
►
Unsuitable coffee or beans no longer fresh
►
Change coffee or use fresh beans.
Seite 75 von 105
7.2.2
Drawing coffee
Complaint
Cause?
Remedial action
Coffee has no “crema”
►
Unsuitable coffee or beans no longer fresh
►
(Layer of froth)
►
Grinding unit setting not adjusted optimally to ►
coffee beans
►
Brewing system dirty
Change coffee or use fresh beans
Adjust grinding unit setting. (Change degree
of grinding only while the grinding unit is
running)
►
Run descaling and cleaning programmes
Coffee levels differ
– when simultaneously filling ►
two cups (> +/– 15%)
►
Appliance not level
►
Place appliance on a level base
Outlet distributor dirty or defective
►
Replace outlet distributor
– when drawing several cups ►
in succession
Hose system or drainage valve leaking
►
During a brewing process check hose system
and drainage valve for leaks
Drainage valve leaking due to coffee dregs
►
Run descaling programme
►
Replace drainage valve
►
►
Incorrect pulsing from flow meter
►
Check hose system between flow meter and
pump. If hose length = 6 cm replace hose
with kit mat. no. 49 3828 (hose = 22 cm)
Coffee is only dripping out
►
Degree of grinding setting too fine
►
Set a coarser degree of grinding.
– tastes too bitter
►
Coffee ground too finely
►
Use coarser ground coffee or reduce dosage.
►
Brewing filter blocked or silted up
►
Clean brewing filter or run cleaning program.
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7.2.3
Grinding unit
Complaint
Cause?
Coffee beans are not ground
►
Grinding unit has not been adequately filled with ►
coffee
Press coffee dispensing button again to start
another brewing process
►
Coffee beans are too oily and stick to the wall of
the bean container
►
Empty and clean bean container. Use beans
with lower fat content
►
Coffee beans do not fall into the grinding unit
►
Bean container is empty
►
Fill bean container
►
Coffee beans do not fall into the grinding unit, are ►
too oily and stick to the wall of the bean container
Empty and clean bean container. Use beans
with lower fat content
Noise of grinding unit is loud ►
Foreign object in grinding unit (e.g. grit, may also ►
occur with select coffees)
Replace grinding unit
►
Ground coffee has been selected
►
Press coffee dispensing button again to start
another brewing process
►
Power module not actuated by the logic module
►
Check actuation; to do this, press the coffee
dispensing button to start a brewing
process. If required, replace the logic
module
►
Grinding unit not actuated by the power module
►
Check actuation; to do this, press the coffee
dispensing button to start a brewing
process. If required, replace the power
module
►
Grinding unit motor defective
►
Replace grinding unit
►
Optocoupler on power module defective
►
Replace the power module
Noise of grinding unit
is quieter and higher
Grinding unit is not
functioning
Grinding unit starts as soon
as appliance is switched on
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Remedial action
Seite 77 von 105
7.2.4
Drawing hot water and steam / frothing
Complaint
Cause?
No hot water or steam ►
function, too little steam
Frother dirty or calcified
►
Dismantle frother, clean carefully or descale
►
Steam/hot water pipe dirty, blocked or calcified
►
Clean or descale steam/hot water pipe
►
Ceramic valve (function selector) blocked, calci- ►
fied
Replace ceramic valve and descale
Frother dirty or calcified
►
Dismantle frother, clean carefully or descale
►
Frother assembled incorrectly
►
Assemble correctly and ensure all parts are
fitted securely without gaps
►
Milk is not at refrigerator temperature
►
Use only cold milk which is at refrigerator
temperature
►
Milk has excessively high fat content
►
Use only long-life milk with a fat content of
1.5%
►
Heater calcified (temperature drop)
►
Descale the appliance
Too little froth when frothing ►
milk
– poor froth consistency
– froth collapses
NOTE:
58300000172660_en_a – 12.04.13
Remedial action
To improve the general milk froth quality, a new froth rotary controller was introduced in 01/2005 with modified
geometry for the auto cappuccino nozzle. The mat. no. can be found in the current spare part documentation.
Seite 78 von 105
7.2.5
Cleaning and descaling programme
Complaint
Cause?
Remedial action
Cleaning programme does ►
not start
System too hot (message on display)
►
Cool down system by drawing hot water
Cleaning programme stops ►
after addition of cleaning
tablet
►
Ground coffee flap is not closed
►
Close ground coffee duct flap and press
coffee dispensing button
No ground coffee duct flap or no magnet on ►
ground coffee duct flap
Replace ground coffee duct flap with magnet
►
Reed switch for detecting the ground coffee duct ►
flap defective
Replace reed switch
Error message “Fault 8” is ►
indicated
Cleaning tablet added at wrong time. Cleaning ►
tablet is blocking brewing unit
Remove and clean brewing unit, remove
cleaning tablet
►
►
Descaling programme does ►
not start
►
If damaged, replace brewing unit
From production date FD8701 on: Microswitch ►
for drip tray monitoring is not actuated
Wrong or defective drip tray inserted. Power
supply for gear motor is interrupted. Brewing
unit cannot be moved. Replace drip tray.
System too hot (message on display)
►
Cool down system by drawing hot water
Water filter inserted and active
►
Remove
water
programming
►
Adjust water hardness
►
Observe 0,5 l mark on water tank
filter
and
change
Descaling programme runs ►
for too long
►
Too much liquid in water tank
Request to empty trays is indicated. Descaling ►
programme interrupted
Empty trays, clean contacts and dry
Descaling display does not ►
go out after descaling
Descaling was ended prematurely
Restart descaling and run from start to end
58300000172660_en_a – 12.04.13
►
Seite 79 von 105
7.2.6
Leaks
Complaint
Cause?
Water tank leaking
►
Water tank, valve and sealing ring dirty or calci- ►
fied
Clean and descale water tank
►
Water tank defective
►
Replace water tank
►
Cracks in water tank coupling
►
Replace water tank coupling
►
Residual water does not run into the drip tray (for ►
appliances with fluid connection bracket)
Install spare-part set for water tank overflow
(mat. no.: 42 5993)
►
Grease film on ceramic discs not homogeneous
►
Actuate ceramic valve several times
Ceramic valve leaking
►
Replace ceramic valve and, following installation, actuate 2 – 3 times
►
Replace drip tray (new material)
Water tank coupling leaking
Ceramic valve leaking
Water running out during brew- ►
ing process
Remedial action
Drip tray leaking
►
Crack in drip tray
Hose system leaking
►
Calcification increases pressure in the hose above ►
35 bar
Fabric hoses burst
►
Hose has preliminary damage
Drainage valve leaking
►
Drainage valve leaking due to coffee dregs
Water running out during brewing process
Brewing unit leaking
►
Run cleaning and descaling programme
►
Replace drainage valve
►
Replace drainage valve
►
Seal damaged
►
Seals on water coupling and on coffee outlet of the ►
brewing unit leaking
Replace and lubricate seals
Lip seal or brewing head defective
Replace brewing unit
Water running out during brewing process
►
58300000172660_en_a – 12.04.13
Replace hose, descale
►
Seite 80 von 105
7.3
System and error messages
7.3.1
Error messages
7.3.1.1
Error 1
7.3.1.2
Error 5
Error 1
Error 5
NTC temperature sensor is outside the measurement range.
Heater or thermal fuse is defective (interrupted).
Appliance too cold (< 5°C) or NTC defective (shortcut).
If this defect occurs while the appliance is operating in a warm state,
the message “Unit is heating” is displayed.
The message is indicated when the appliance has been switched on
and initialised.
If the ambient temperature is too low, the message goes out when the
appliance has warmed up to room temperature.
58300000172660_en_a – 12.04.13
The message is indicated as long as the appliance remains switched
on.
When the appliance has been switched off and after the cooling
phase, the message is indicated as in the cold state.
Seite 81 von 105
7.3.1.3
Error 8
Error 8
Initialisation of the brewing unit has failed.
The brewing unit cannot be moved into the upper end position.
This may be due to several causes, e.g.:
►
Incorrect operation – the brewing unit was filled with too much
pre-ground coffee or with whole coffee beans via the ground
coffee slot.
►
Incorrect operation – cleaning tablet was inserted too early
and blocked the brewing unit.
►
Wrong coffee settings – too much, too finely ground coffee.
►
Wrong grinding unit setting – grinding too coarse, amount too
large.
If the message does not go out when the appliance is switched off and
on again, disconnect the appliance from the power supply and clean
the upper filter in the brewing unit with a damp cloth (kitchen roll). To
do this, remove the drip tray and access the appliance from the front.
►
If required, readjust the grinding unit setting.
From production date FD8701 on: Check micro switch for drip tray
detection and its trigger on the drip tray. Gear motor is only actuated if
the microswitch is closed.
58300000172660_en_a – 12.04.13
Seite 82 von 105
7.3.2
7.3.2.1
System messages
Add water
ADD WATER
Water tank is empty
(1) The water level in the tank is monitored by a float with magnet (A) /
magnetic switch and software counter (pulses from flow meter) in the
appliance.
(2) When the water tank has been filled, the float rises and actuates
the magnetic switch.
►
The appliance is ready to use.
(3) If the water level drops to a level between 80 ml and 180 ml, ADD
WATER is displayed. The amount of residual water in the tank
depends on the product which was last brewed (espresso, coffee...).
Brewing is not terminated due to lack of water.
(4) Silting or calcification in the water tank may cause the float to stick
to the tank wall. Despite the filled tank, the ADD WATER display does
not go out.
The incorporation of additional guide fins (B) for the float reduces the
risk of the float sticking.
58300000172660_en_a – 12.04.13
Seite 83 von 105
7.3.2.2
Add beans
ADD BEANS
No coffee beans in the bean container (a)
►
Top up bean container with fresh coffee beans and press the
coffee dispensing button to start a brewing process.
ADD BEANS is not displayed until a brewing process ends, as the
actual filling of the brewing chamber is measured during the brewing
process.
ADD BEANS is displayed, even though the bean container has
been filled:
►
Grinding unit is not filled with ground coffee, e.g. when
switching on the appliance for the first time or following
service – press the coffee dispensing button to start another
coffee brewing process.
►
Beans cannot flow into the grinding unit – empty and clean
bean container. Use beans with lower fat content. Beans with a
high fat content may stick to the surface of the bean container.
►
Grinding process takes too long, not enough coffee is ground –
set coarser degree of grinding (b).
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Seite 84 von 105
7.3.2.3
Fill up pipe-sys
7.3.2.4
Close the door
For production reasons the water line system in the appliance must be
occasionally filled again when the appliance is switched on for the first
time:
The illuminated rings around the standby button and the coffee
dispensing button flash and the following displays occur alternately:
CLOSE THE DOOR
▲▼
Brewing unit not or incorrectly locked
►
Install and lock brewing unit
Brewing unit is not or incorrectly locked. (If the brewing unit is missing,
it is not “Brewing unit missing” which is displayed but “Close the door”.
►
Press the coffee dispensing button.
Approx. 30 ml of water are conveyed and the water line system is
filled.
Then the appliance is ready to use.
58300000172660_en_a – 12.04.13
Seite 85 von 105
7.3.2.5
Empty trays
7.3.2.6
Trays missing
EMPTY TRAYS
TRAYS MISSING
Dregs drawer or drip tray full or tray contacts dirty
Drip tray not or incorrectly inserted
When the drip tray is full of water, the tray contacts are inserted into
the water. The electrical resistance between the tray contacts drops.
EMPTY TRAYS is displayed.
►
Insert drip tray all the way
►
Remove drip plate and push tray until it is inserted completely
►
Pull trays, empty, clean contacts and re-insert
If the EMPTY TRAYS display does not go out despite the trays having
been emptied, there may be residual water or coffee between the tray
contacts (transfer resistance caused by damp ground coffee).
Carefully clean trays in the area of the contacts.
If the TRAYS MISSING display goes out even though the drip tray has
not been inserted, check that the tray contacts are positioned
correctly.
EMPTY TRAYS is displayed after a number of coffee brews, e.g.:
8 x strong
10 x normal
14 x mild
8 x ground coffee
58300000172660_en_a – 12.04.13
Seite 86 von 105
7.4
Service diagnosis
7.4.1
Hardware requirements
7.4.2
To operate the system without errors, the following minimum
requirements must be satisfied:
Service diagnosis kit (Mat.-no. 34 0995)
A service diagnosis kit is required to support diagnosis of the
appliances by PC. This kit includes the following components:
Hardware requirements:
PC 486 or higher
VGA
MS DOS 6.0 or higher
Windows 95 / 98 / NT / 2000 / XP
At least 5MB disc space
on HD
3.5” disk drive
At least 2 serial interfaces
USB interface
Parallel interface
Printer
(A)
(B)
(C)
(D)
(E)
(F)
58300000172660_en_a – 12.04.13
Scanner (is switched between PC and test object)
Connecting cable between scanner and test object
CD with diagnostic software
Connecting cable between PC and scanner
Start installation disk
Power supply unit for scanner
Seite 87 von 105
7.4.3
Installing the software
Insert Start disk in drive “A”
Insert software CD in drive
Menu Start, Run, disk drive SETUP.EXE
Follow installation instructions
Start the programme
7.4.4
Software installation via NetInstaller
►
Click „Start“, „Programs“, „AddRemovePrograms“ and open
„NetInstaller“ on your PC system.
►
Open folder „After Sales“, then select program „BSH Top
Tronic Service System 1.42 DE“.
►
Click on „Install“ and follow the instructions.
58300000172660_en_a – 12.04.13
Seite 88 von 105
7.4.5
Connecting the test object
Data can be exchanged between the appliance to be tested and the
connected PC via the scanner.
7.4.6
USB service diagnosis kit
The scope of delivery is changed with the introduction of the new USB
service diagnostic kit (Mat.-no. 34 0995).
The power supply unit is no longer required because the scanner is
supplied via the USB connection on the PC.
The scanner is connected to the PC and test object with the
connecting cables included in the diagnostic kit. The scanner is
supplied with a 9 VAC operating voltage via the power supply unit.
Installation of the software, surface of the animation and diagnostic
sequence remain unchanged up to the present version.
58300000172660_en_a – 12.04.13
Seite 89 von 105
7.4.7
Diagnostic plug
The diagnostic plug on the appliance will be accessible when the left
appliance flap is opened and the cover (A) is removed. The
transparent protective cap over the diagnostic plug must be removed
before the scanner is connected.
To ensure that the connecting cable is connected securely to the
scanner and the diagnostic plug (B) on the appliance, the diagnostic
plug can be pulled up slightly out of the appliance.
7.4.8
Input diagnostic
► Data is read out. (Production, statistical, service, customer data)
► The difference on the counter since the last service is deleted.
► The latest, current factory settings are transferred from the PC to
the machine.
► The internal appliance faults are analyzed (service fault bits)
► Then either a static diagnostic or a dynamic diagnostic is run,
similar to the final inspection during production, however without
external power and temperature measurements and without
evaporation.
► This depends on the settings which are entered in the individual
test configuration of the input diagnosis.
► Finally a report is prepared which can either be saved or printed
out.
► Apart from the information mentioned under line 1, the report also
includes service suggestions depending on the number of brewing
processes, as well as max. 3 service stamps if the last ones were
implemented on the corresponding appliance.
When the diagnostic sequence has run, disconnect the cable, press
the diagnostic plug back into the guide in the appliance, re-attach the
transparent protective cap and close off access to the diagnostic plug
by re-attaching the cover (A).
58300000172660_en_a – 12.04.13
Seite 90 von 105
7.4.9
Service fault bits
Analyse internal
appliance fault.
Service fault bit
7.4.11 Definition of “minor” / “major” service
0 Check encoder cable
1 Coffee heating sensor – short-circuit
2 Coffee heating sensor – interruption
3 Steam heating sensor – short-circuit
4 Steam heating sensor – interruption
5 Heating up not possible
6 Water sensor above tolerance
7 Position cannot be started
Initialisation failed
8 Flowmeter time-out / System blockage
Example:
00001000
= Heating up not possible
Take out and clean brewing unit
Check flowmeter
Check pressure hose
Check grinding performance / result
7.4.11.2 Major service
Descale appliance
Check flowmeter
Brews since last intervention
< 1500
Fault rectified
Brews since last intervention
> 1500 < 3500
Minor service
Brews since last intervention
> 3500
Major service
Total brews / total rinses
and
Brews since last intervention
<2
58300000172660_en_a – 12.04.13
Descale appliance
Replace brewing unit
7.4.10 Measured variables for service suggestions
> 2500
7.4.11.1 Minor service
Check pressure hose
Check outlet
Check grinding performance / result
Major service
Seite 91 von 105
7.4.12 Individual test
7.4.15 Service stamp
The following options can be selected:
The service stamp is input via the following form:
Upgrading factory settings
(the latest parameters are transferred from the PC to the appliance)
7.4.15.1 Group definition
Statistics
(Only data is read out of the appliance without any change to the
current appliance status)
Specific fault groups are allocated to the working points. When a
working point has been selected, its fault group is activated for
selection in "Input fault code".
Configuration of the input diagnostic (short / long)
(a “short / static” or “long / dynamic” input diagnostic can be selected.
Recommendation = dynamic diagnostic)
A690 = Instantaneous water heater replaced,
Resetting the grinding time
Reset to “initial start up”
F 4 00 = Coffee water heater blocked
(normal = 10 sec./initial start up = 13 sec.)
7.4.15.2 Service stamp structure
or keep the current grinding unit running time.
7.4.13 Statistics
The statistical data can be displayed via the individual test.
7.4.14 Output diagnostic
Customer data from the input diagnostic is saved back in the machine.
(Production, statistical, service, customer data)
Dynamic diagnostic similar to final inspection during production and
input diagnostic, however without external power and temperature
measurement, however with evaporation of the heating cartridge.
4
Fault group
This concept of the service stamp enables each service centre to
evaluate what work was carried out during the last service and which
faults were rectified. In all 3 service entries are saved in the appliance.
The first stamp is never overwritten. In the case of stamps 2 and 3 the
older stamp is overwritten. Therefore it is always obvious when the 2
previous services were carried out.
The definitions as work/fault codes, major faults, employee number
and number of services are included only in the last service entry
in the appliance.
The service date, number of the service centre and invoice item are
saved for all three entries.
Input service entry via input mask (see service stamp)
Identical to the input diagnostic, a report is also prepared here with the
same processing options.
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Seite 92 von 105
7.4.15.3 Contents
7.4.16 Service data
Number of services
Major fault code
Fault code 1
Work code 1
Work code 2
Work code 3
Customer
Employee number
1 – 255
001 – 999
001 – 999
001 – 999
001 – 999
001 – 999
1 – 15
1 – 999
Special software is required to analyse the data from the service
systems.
Service date stamp 1
01.01.1990 –
31.12.2117
1 – 4095
1 – 255
2026  Animation system
01.01.1990 –
31.12.2117
1 – 4095
1 – 255
Number of the animation system stamp 1
Invoice item stamp 1
Service date stamp 2
Number of the animation system stamp 2
Invoice item stamp 2
Service date stamp 3
Number of the animation system stamp 3
Invoice item stamp 3
58300000172660_en_a – 12.04.13
This software is executed at each start of the service system.
It combines all repaired appliances in one text file. This file can
be imported for further processing into Excel or Access. The update
solution (FTP tool) can send these files by e-mail to the required
address. (See Internet update)
The file name of such a statistics file is composed as follows:
Animation system, year, month, day  202620020909.TXT
2002  year
09
 month
09
 day
TXT
 file name extension
The field separator for data import is a comma “,” with the file located
in the QS folder.
01.01.1990 –
31.12.2117
1 – 4095
1 – 255
Seite 93 von 105
7.5
Troubleshooting
Danger!
If tests have to be conducted while the
appliance is live, ALWAYS use a residualcurrent-operated circuit-breaker!
Troubleshooting:
1. Check power supply
If there is no electrical meter available, temporarily insert and operate
another electrical device on the same socket.
►
No power supply → Have electrical installation checked.
►
Power supply available → see Point 2
7.5.1
Tools
►
Torx screwdriver T10
►
Electric multimeter
►
Circuit diagram
To do this, open the appliance. Using the Torx T10 screwdriver,
unscrew all rear panel screws and remove the rear panel.
7.5.2
Appliance does not switch on
Check voltage at the mains input (terminal on noise filter).
2. Check voltage at mains input
Fault description:
►
No power supply → defective power cord
The display (display or symbol) on the appliance does not come on
►
Power supply available → see Point 3
Possible faults:
3. Check voltage at mains switch input
1. No power supply
Measure voltage on the neutral conductor of the feed-in (terminal on
noise filter) and on the main switch input.
2. No voltage at the mains input of the appliance
3. No voltage at the mains switch
4. No voltage at the power module input
►
No power supply → defective mains filter
►
Power supply available → see Point 4
5. No voltage at the power module output to transformer
4. Check voltage at mains switch output
6. No voltage at the power module input from transformer
Set mains switch to “On”.
7. No voltage at the power module output to logic module
Measure voltage on the neutral conductor of the feed-in (terminal on
noise filter) and on the main switch output.
8. No voltage at the logic module input
58300000172660_en_a – 12.04.13
►
No voltage → defective main switch
►
Power supply available → see Point 5
Seite 94 von 105
Appliance does not switch on
5. Check voltage at power module output to transformer
Check voltage on plug CP2B on power module.
►
No voltage → defective power module
►
Power supply available → see Point 6
6. Check voltage at power module input from transformer
The secondary voltages (15 VDC / 9 VDC) of the transformer are
measured on the flat plug CP4 (2 x red = 15 VDC / 2 x white = 9 VDC)
►
No voltage → defective transformer
►
No 15 VDC voltage → defective transformer
►
No 9 VDC voltage → defective transformer
►
Voltage available → see Point 7
7. Check voltage at power module output to logic (5 VDC)
The output voltage is measured from the power module to the logic
module (control electronics) on plug CP9, terminals 1 = GND (brown)
and 2 = + 5V (red).
►
No voltage → defective power module
►
Voltage available → see Point 8
8. Check voltage on logic module input
Measure voltage input on plug CM9 of the logic module on terminals 1
= GND (brown) and 2 = + 5 V (red).
►
No voltage → defective ribbon cable
►
Voltage available → defective logic module
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Seite 95 von 105
7.5.3
Grinding unit is not functioning
Fault description:
2. Check voltage on power module grinding unit output
Grinding unit is not running
The voltage for the grinding unit is measured on plug CP5 on
terminals 3 = GND (black) and 2 = (transparent). The grinding unit
must be actuated by a coffee brewing process.
Possible faults:
1. No control signal voltage from logic module
2. No voltage at power module grinding unit output
3. No voltage on the grinding unit
►
No voltage → defective power module
►
Voltage available → see Point 3
3. Check voltage on grinding unit
Troubleshooting:
1. Check control signal voltage from logic module
First check whether the logic module is relaying the signal required for
actuation of the grinding unit to the power module. To do this, open
the appliance. Using the Torx T10 screwdriver, unscrew all rear panel
screws and remove the rear panel. Remove upper appliance cover to
the rear. Remove both side panels upwards.
The operating voltage for the grinding unit is measured on the
connecting plugs of the grinding unit. The grinding unit must be
actuated by a coffee brewing process.
►
No voltage → defective wiring, interrupted VHF-filters,
actuated temperature limiter
►
Voltage available → defective grinding unit
The control signal voltage can be measured on plug CM9 on terminals
1 = GND (brown) and 5 = 5 VDC (green). The grinding unit must be
actuated by a coffee brewing process.
►
No signal voltage → Logic module or connecting cable
defective
►
Voltage available → see Point 2
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Seite 96 von 105
7.5.4
Pump is not functioning
Fault description:
3. Check voltage on thermostat input
Pump is not actuated / is not pumping
3. No voltage at thermostat input
Before the voltage can be checked on the pump itself, the thermostat
must be tested for function. The pump must not be overheated! The
voltage is measured at the thermostat input – on the right (grey cable
from power module) and at the thermostat output – on the left (grey
cable at pump connection. In both cases the phase connection (black)
of the pump is used as the anti-pole. The pump must be actuated by
a coffee brewing process.
4. No voltage on the pump
►
No voltage at the thermostat input → defective wiring
Troubleshooting:
►
No voltage at the thermostat output → defective thermostat
1. Check control signal voltage from logic module
►
Voltage available at thermostat output → see Point 4
Possible faults:
1. No control signal voltage from logic module
2. No voltage at power module pump output
To do this, open the appliance. Using the Torx T10 screwdriver,
unscrew all rear panel screws and remove the rear panel. Remove
upper appliance cover to the rear. Remove both side panels upwards.
The control signal voltage is measured on plug CM9 on terminals 1 =
GND (brown) and 8 = 5 VDC (grey). The pump must be actuated by a
coffee brewing process.
►
No signal voltage → Logic module or connecting cable
defective
►
Voltage available → see Point 2
4. Check voltage on the pump
The pump operating voltage is checked at the terminals of the pump.
►
No voltage → defective thermostat
►
Voltage available → defective pump
2. Check voltage on power module pump output
The voltage for the pump is measured on plug CP5 on terminal 1 =
phase and the neutral conductor, terminal 4. The pump must be
actuated by a coffee brewing process.
►
No voltage → defective power module
►
Voltage available → see Point 3
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Seite 97 von 105
7.5.5
Heater is not functioning
Fault description:
3. Check voltage on thermal release input
Does not heat up
The operating voltage of the heater is measured at the thermal
release input (brown = under the insulation sleeve) and on the blue
terminal on the heating element.
Possible faults:
1. No control signal voltage from logic module
2. No voltage at power module heater output
3. No voltage at thermal release input
4. No voltage at heater connection
Troubleshooting:
1. Check control signal voltage from logic module
To do this, open the appliance. Using the Torx T10 screwdriver,
unscrew all rear panel screws and remove the rear panel. Remove
upper appliance cover to the rear. Remove both side panels upwards.
►
No voltage → defective wiring
►
Voltage available → see Point 4
4. Check voltage on heater connection
The operating voltage of the heater is checked on the terminals of the
heating element (brown = neutral conductor; blue = phase).
►
No voltage → interrupted thermal fuses
►
Voltage available → defective heating element
The control signal voltage is measured on plug CM9 on terminals 1 =
GND and 4 = 5 VDC. The heater must be actuated by drawing hot
water. The heater is actuated in pulses.
►
No control voltage → Logic module or connecting cable
defective
►
Voltage available → see Point 2
2. Check voltage on power module heater output
The voltage for the heater is measured on plug CP5 on terminal 5 =
neutral conductor (blue) and terminal 1 = phase (brown). The heater
must be actuated by drawing hot water. The heater is actuated in
pulses.
►
No voltage → defective power module
►
Voltage available → see Point 3
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7.5.6
Brewing unit is not functioning
Fault description:
2. Check voltage on power module brewing unit output
Brewing unit no longer moves
To check the voltage at the power module brewing unit output (= 12
VDC), open the appliance. Using the Torx T10 screwdriver, unscrew
all rear panel screws and remove the rear panel. Remove upper
appliance cover to the rear. Remove both side panels upwards.
Possible faults:
1. No control signal voltage from logic module
2. No voltage at power module brewing unit output
3. No voltage at brewing unit drive input
The voltage for the drive of the brewing module is measured on plug
CP2A on terminals 1-green and 2-red.
For operation on right = brewing unit runs up;
green = GND / red = 16 VDC
Troubleshooting:
For operation on left = brewing unit runs down;
green = 16 VDC / red = GND
1. Check control signal voltage from logic module
To do this, open the appliance. Using the Torx T10 screwdriver,
unscrew all rear panel screws and remove the rear panel. Remove
upper appliance cover to the rear. Remove both side panels upwards.
Check two control signals for the brewing unit. Signal on right =
brewing unit runs up; signal on left = brewing unit runs down. The
control signal voltage on the right is measured on plug CM9 terminal 1
= GND (brown) and terminal 6 = 5 VDC (blue); the control signal
voltage on the left is measured on CM9 terminal 1 = GND (brown) and
terminal 7 = 5 VDC (violet). The brewing unit must be actuated by a
coffee brewing process.
The brewing unit must be actuated by a coffee brewing process.
►
No voltage → defective power module
From production date FD8701 on: Check micro switch for drip tray
detection and its trigger on the drip tray. Gear motor is only actuated if
the micro switch is closed.
►
Voltage available → see Point 3
3. Check voltage on brewing unit drive input
►
No control voltage on right → Logic module or connecting
cable defective
The operating voltage of the brewing unit drive is checked on the
terminals of the motor. To conduct this measurement, detach the drive
from the appliance.
►
No control voltage on left → Logic module or connecting cable
defective
The operating voltage can be measured on the terminals of the motor.
►
Voltage available → see Point 2
58300000172660_en_a – 12.04.13
►
No voltage → defective wiring
►
Voltage available → defective brewing unit drive
Seite 99 von 105
7.6
Measuring the coffee temperature
Procedure:
1.
Switch on the machine with the main switch, press the standby
button.
2.
Wait until the illuminated ring around the standby button stops
flashing (heating-up and rinsing phase has ended).
3.
Set filling quantity: coffee (approx. 125 ml)
Select coffee strength: Normal (approx. 9 g)
4.
Place a measuring cup (A) under the coffee outlet.
5.
Start coffee brewing process by pressing the coffee dispensing
button.
6.
Wait until there are 20 ml of coffee in the measuring cup.
Then measure the coffee temperature approx. 5 – 10 mm
under the coffee outlet (B) in the middle of flow.
1st coffee: The coffee temperature should be approx. 82 °C +/–5 C.
7.
Empty the measuring cup (A) and place it under the coffee
outlet again.
8.
Start coffee brewing process by pressing the coffee dispensing
button.
9.
Wait until there are 20 ml of coffee in the measuring cup.
Then measure the coffee temperature approx. 5 – 10 mm
under the coffee outlet (B) in the middle of flow.
2nd coffee: The coffee temperature should be approx. 82 °C +/–3 °C.
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8
TECHNICAL SPECIFICATIONS
8.1
Rating plate
The rating plate is situated on the control panel holder. It is accessible
when the drip tray is pulled out.
A
Voltage
B
VIB (sales identification designation)
C
Customer service index
Newly launched appliances are given the customer service
index “01”. The customer service index is increased to “02”,
“03”, etc. if customer service makes changes to the appliance.
D
Frequency
E
Production date according to BSH key.
For example: FD8510
85 = year minus 20 (= 2005)
10 = month (October)
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105
F
Serial number (optional)
G
Power
H
Type (works designation)
I
Field for approbation number
Seite 101 von
8.2
Power
8.3
8.2.1
Mains voltage
Fahrenheit
EU
230–240 V / 50 Hz
UC
120 V / 60 Hz
8.2.2
Connected load
Temperatures
Celsius
1300 W
8.2.3
Power input
Heater
1250 W
Pump
8.2.4
Formula
65 W
20.5 Wh
1 coffee (normal strength)
17.0 Wh
1 espresso (normal strength)
9.3 Wh
Standby mode (24 hours)
3.0 Wh
Static
max. 16 bar
15–17 bar
max. permitted
22 bar
2
nd
coffee NORMAL (in the flow)
8.3.2
82 °C +/– 5°
82 °C +/– 3°
Hot water
Hot water production without interruption
> 82 °C
Hot water production after 1st heating-up process
> 85 °C
Switch-on time
Switch on with rinsing
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8.3.3
Steam
Steam production 200 ml, 1 min. (pump clocks)
8.3.4
> 80 °C
Milk
Setpoint temperature UHT milk 1.5% (measure in
Tetrapack)
Flow rate
120–240 ml / min at 12 bar, 230–240 V / 50 Hz
8.2.7
Measure coffee temperature 2–3 mm below the outlet:
Pump pressure
During coffee preparation
8.2.6
Coffee outlet
1st coffee NORMAL (in the flow)
Power data (230 V/50 Hz model)
Switch on (with rinsing)
8.2.5
8.3.1
established 0°F as the stabilized temperature when
equal amounts of ice, water, and salt are mixed. He
then defined 96°F as the temperature "when the
thermometer is held in the mouth or under the armpit of
a living man in good health."
0°C and 100°C are arbitrarily placed at the melting and
boiling points of water and standard to the metric
system
C = (F-32)*0.5555
F = 1,8*C + 32
10 °C +/– 5°
Warm 100 ml milk in stainless steel jug <1 min.
55–70 °C
Froth up 100 ml milk with steam pipe < 1 min.
55–70 °C
approx. 70 sec.
Seite 102 von
8.4
Dimensions and weight
8.4.1
Appliance dimensions
Height
458 mm (22 1/16 inch)
Width
594 mm (23 3/8 inch)
Depth
532 mm (21 4/8 inch)
Height between
coffee outlet and drip plate
8.4.2
Installation dimensions
Cavity height
450 mm
Cavity width
560 mm
Cavity depth
550 mm
Note:
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105
85 mm +/– 2mm
If the appliance is installed together with a warming
drawer, a partition is not required.
Seite 103 von
8.4.3
Cable length
Approx. 3.0 m
8.4.4
Weight of machine
Net weight
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28 kg
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8.5
Filling amounts
8.5.1
Capacity
Water tank
1.8 l (61 oz)
Bean container
approx. 400 g (14.11 oz)
Drip tray
8.5.2
approx. 750 ml (signal limit)
Cup filling amounts
1
220 ml
XXL COFFEE
2
160 ml
LARGE COFFEE
3
125 ml
COFFEE
4
80 ml
SMALL COFFEE
5
40 ml
ESPRESSO
6
20 ml
SMALL ESPRESSO
7
40 ml
2 SMALL ESPRESSOS
8
80 ml
2 ESPRESSOS
9
160 ml
2 SMALL COFFEES
10
250 ml
2 COFFEES
11
300 ml
2 LARGE COFFEES
12
360 ml
2 XXL COFFEES
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