FAULT FINDING AND DIAGNOSTICS | 53
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12.3.1 Selecting the information menu
The Information Menu is a "read only" menu. Information about the boiler
is displayed here, some of the values are updated in real time to give the
current status of the boiler.
All menus time-out after two minutes and the display returns to the
normal operation display, the display backlight turns off after another
30 seconds.
Double up or down arrows indicate that the menu can only be scrolled up
or down, an up and down arrow combination indicates position in the
menu where options can be scrolled either up or down.
To enter Information menu:
1. Press the button to enter the information menu.
▶ A three figure boiler status code will be displayed along side the
information menu number. Refer to status code table on page 51 for
a description of the boiler status codes.
2. Use the plus and minus buttons to scroll through the menu items.
▶ Press the button again to exit the Information menu.
Fig. 75 Accessing the Information menu
Service functions Comments
i1 Current operating
state
Every operation and mode of the boiler
has a related boiler status code.
The boiler status code is displayed on the
screen as a three figure number.
Refer to Status code table on page 51
i2 Operating code for
the last error
This can be viewed during normal
operation. Displays the last diagnostic
code with boiler status code.
i3 Maximum shared
heating
Setting of service function 2.1A
i4 Maximum shared
power (Hot water)
Setting of service function 2.1b
i7 Flow temperature The actual control system supply
temperature required
Table 28 Information menu
6720809859-53.1Wo
°C
°F
i 1 203
1.
2.
°C
°F
Info
i8 Ionisation current When the burner is running:
• 2 micro Amp = OK
• < 2 micro Amp = faulty
With burner off:
• < 2 micro Amp = OK
• 2 micro Amp = faulty
i9 Temperature at
temperature flow
sensor
This is the actual temperature from the
main heat exchanger displayed in real
time.
i12 DHW temperature The hot water set temperature
i13 Temp. at the storage
tank temp. sensor
only with attached hot water tank
i15 Current outside
temperature
Only displayed when an external
temperature sensor system is connected.
i16 Actual system pump
modulation
Display in % of pump modulation (system
boiler only)
i17 Current heating Display in % of maximum rated heat output
in heating mode
1)
i18 Current fan speed Display in revolutions per second (Hz)
i20 Software version
circuit board 1
Firmware version of the main control
board.
i21 Software version
circuit board 2
Firmware version of the fascia control
display board
i22 Code plug number The last three digits of the code plug
(HCM) are displayed
i23 HCM version Version of the code plug (HCM) is
displayed
1) During the water heating, values greater that 100% are displayed in menu 1
Service functions Comments
Table 28 Information menu
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