78
06/2011 Rev. 7.4
M o d e l 2 0 0 9
06/2011 Rev. 7.4
79
M o d e l 2 0 0 9
6.4 Main circuit board communication
Communication
Conn
Comments
G13
Coin tester NRI G13
MDB
Coin changer NRI C
2
Please note; MDB signal
should adapted on PC board.
CSI
Future port
RS232
Future port
USB
Future port
7. TROUBLESHOOTING
WARNING
When carrying out repairs and cleaning the device, the plug should always be removed from the
wall socket before the device is opened.
Preface
Before searching for the defect, check that all parts are in their correct position. To do this, remove
the device’s rear plate and check that all printed circuit boards, connectors, wire beams and pipes are
mounted correctly.
After carrying out a general parts inspection, use section 7.3 Troubleshooting analysis to verify the
probable cause of the problem.
#) If the column solution advises replacement of the part concerned, there is always the possibility
that the defect may be caused by another problem. The functioning of the device should therefore be
thoroughly tested to make sure that the defect does not reappear.
7.1 Read log
The last 20 error messages displayed during use are
registered and saved ( g. 16).
To read out these error messages activate the menu item 2.8.
The rst error is the most recent error message.
• The
rst line shows the same error codes listed in
the troubleshooting analysis table (see section 7.3)
• The second line shows the date and time at which the
error message occurred.
7.2 Clear log
Use the Clear log function in service menu 2.9 to clear the log.
G13
MDB
COMMUNICATION
RS232
## $%
&#'(('&##) (#*(#
Number
Trouble code
Date
Time
Fig. 15
Fig. 16
7.3 Troubleshooting
Display
Possible cause
Action
Out of order
Boiler lling
When used for the rst time: boiler
is still empty and is being lled.
No action required. When boiler reaches
the appropriate level, the display will show
'Boiler is heating up'.
During use: boiler is not lling
up or is lling up too slowly. After
60 sec. the display will show 'E3
Level error'.
Check the water pressure, turn the water
supply tap completely open and check the
connection tube for any kinks.
Out of order
Boiler heating
The boiler temperature is
(temporarily) too low because too
much water has been used.
Once the temperature is restored, the
message automatically disappears and the
drink selection buttons are reactivated.
Out of order
Door open
For safety reasons, the machine
automatically switches off if the
door is opened.
The machine can be operated with the door
open by using the door pin (User manual:
section 8.1 ).
Out of order
Stand-by
The machine is on standby.
This function can be set manually or
automatically.
Out of order
E1 Level error
Minimum electrode error: mini-
mum electrode detects no water
but maximum electrode does. Inlet
valve shuts.
Check that the level sensors are function-
ing. See service menu
2.7 Hardware test
.
Switch the device off and on again.
Out of order
E2 Level error
Maximum electrode error:
maximum electrode not reached
within 30 sec. Inlet valve shuts.
Boiler lls up too slowly. Water
pressure has dropped or the water
tank (stand-alone) is empty.
Check the water pressure, turn the water
supply tap completely open and check the
connection tube for any kinks. Switch the
device off and on again.
Out of order
E3 Level error
Electrode error: minimum
electrode not reached within 90
sec. Boiler lls up too slowly
Water pressure has dropped or
the water tank (stand-alone) is
empty.
Check the water pressure, turn the water
supply tap completely open and check the
connection tube for any kinks. Switch the
device off and on again.
Out of order
E6 Boiler temp
Temperature sensor or solid state
relais (SSR) problem.
Check the temperature sensor function in
the service menu
2.7 Hardware test.
Check if SSR switches. Replace if
necessary.
Check if steam detection mounted in the
over ow tube was triggered.
Reset if necessary.
Out of order
E7 Mixer 1 error
Mixer 1 motor stuck. Mixer 1 mo-
tor exit overload (power too high).
Control unit has switched off the
exit.
Check if Mixer 1 is unclean or incorrectly
tted. Clean and/or check whether the rotor
can run freely. Switch the device off and on
again.
Out of order
E8 Mixer 2 error
Mixer 2 motor stuck. Mixer 2 mo-
tor exit overload (power too high).
Control unit has switched off the
exit.
Check if Mixer 2 is unclean or incorrectly
tted. Clean and/or check whether the rotor
can run freely. Switch the device off and on
again.
