Service Menus - Bosch WORCESTER Greenstar Heatslave II External 12/18 Installation, Commissioning And Servicing Instructions

Fault finding and diagnosis
i13 Thermal This is the thermal store current temperature,
store displayed in real time (rounded to 0.5°C units).
current
temperature
i14 DCW inlet Current DCW inlet temperature displayed in real
temperature time (rounded to 0.5°C units).
i15 Out door This is the out door temperature displayed in real
temperature time (rounded to 0.5°C units). Only available if a
Weather Compensation sensor has been fitted and
Weather Compensation is active.
i19 Time inputs This indicates the status of the optional fascia
mounted controls:
0 = CH off, DHW off
1 = CH off, DHW on
2 = CH on, DHW off
3 = CH on, DHW on
i20 Software CBS software version of main PCB.
version
i21 Software HIS software version of the HIS PCB.
version
i22 HCM HCM last 3 digits displayed:
number 391 = 12/18 kW
390 = 18/25 kW
301 = 25/32 kW
i23 HCM version For example "4"
number
Table 11
8.3

Service menus

Selecting Service Menus
1. Press and hold the and
display will show Menu 1.
– Double up or down arrows indicate that the menu can only be
scrolled up or down, an up and down arrow combination indicates
positions in the menu where options can be scrolled either up or
down.
1
Fig. 93
2. Scroll up and down through the menus with the
buttons on the right hand side of the display.
48
ok
buttons together for 1 second, the
6 720 805 209-64.1TL
and arrow
2
Fig. 94
Menu 1 system parameters
Initially Menu 1 will be displayed.
1.W1 Weather Compensation
Functionality
1.W2 Weather Compensation
Functionality
1.W3 Weather Compensation
Functionality
1.W4 Weather Compensation
Functionality
Menu 2 boiler parameters
3. Select Menu 2 via the
3
Fig. 95
ok
4. Press and hold the button for 1 second to enter Menu 2.
– The menu lists the boiler parameters, that can be adjusted in this
menu.
▶ To modify the setting, select the desired menu option and press
the button, the option will flash.
ok
▶ Adjust the parameter using the
ok
the button to confirm.
– A will display for 3 seconds to confirm the update of the new
value.
Greenstar Heatslave II External
6 720 805 209-65.1TL
Enable.
Point A (@-10°C)
Point B(@+20°C)
System frost protection
enable.
arrow buttons.
6 720 805 209-66.1TL
arrow buttons and press
2022+ 6 721 843 980 (2022/01)