Bosch GWI-N Series Training And Service Information page 44

Step 4
- If the problem persists disconnect the appliance, wait at least 30 seconds, connect it
again and retry the connection;
- Restart as well the smartphone and open again the app and repeat the procedure for
pairing unit with smartphone;
Attention:
Important Information for Technicians when replacing Control Unit:
- The function of data backup must be used without disconnecting the app and following
this procedure:
1 st – Press "backup" to read info (configuration parameters) from Control Unit;
2 nd – Disconnect power supply and replace control unit changing Bluetooth dongle for new
ECU;
3 rd – Turn On unit and search again for devices on the App and perform the connection;
4 th – Press "restore" to upload configuration data in new ECU.
Diagnostic Mode
The access to the data visualization mode, is made by entering first in the "service mode"
and then, scrolling to the parameter "P4" of the adjustment mode.
Diagnostic mode and
visualization mode
By pressing the "P" button while the display shows "P4", the LCD will enter into
visualization mode and will show "E", meaning "Exit" from the visualization mode. By
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Installer Level
This mode helps the
installer in the startup technician to find some
to check parameters
such as water flow
through the appliance
and inlet / outlet
temperatures
Table 28 – P4
6 720 814 719 SM FP_Australia 2017/04 EN
Technician Level
Main recommendation is
This mode helps the
to perform always a check
information useful to
adjust and to check
functionality of the
appliance.
Comments
on the last 10 failures in
memory in order to
analyze eventual
problems in installation
that might need to be
corrected