FAULT FINDING AND DIAGNOSIS
6 720 803 800 (2012/11) 61
i1 Current status 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 table on page 58 or error
table for information on the boiler
status codes.
i2 Last error This can be viewed during normal
operation. Displays the last diagnostic
code with boiler status code.
i3 Maximum heating
output
The maximum possible heat output is
displayed in kW. The boiler may have
the maximum output reduced via
Menu 3.1A
i6 DHW flow rate at 40 °C
temp. rise ± 15%.
The screen displays the current DHW
flow rate in litres per minute to one
decimal place.
i7 Supply temperature
setpoint
This is the temperature set point for
the primary flow from the main heat
exchanger. (This will be zero during
HW demand.)
i8 Ionization current The ionization current should be equal
to or greater than
35 μA (micro Amps).
i9 Flow temperature This is the actual temperature from
the main heat exchanger displayed in
real time.
i10 Maximum temperature This is the current temperature from
the “Maximum safety sensor”. This
sensor is mounted on the front of the
heat exchanger.
i11 DHW flow temperature The current DHW flow temperature.
i12 DHW temperature
setpoint
This is the temperature selected via
the Hot Water control knob on the
fascia.
i14 Return temperature The current temperature returned to
the main heat exchanger.
i15 Outdoor temperature
i16 Pump modulation The current pump modulation is
displayed as a percentage.
i17 Burner modulation The current burner modulation is
displayed as a percentage.
i18 Fan speed The current fan speed is displayed in
Hertz. The value is up-dated in real
time.
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 version Firmware version of the main control
board.
i21 Software version Firmware version of the fascia control
display board
Table 17 Information menu listing
i22 Heat Control Module
(HCM) number.
The last three digits of the HCM are
displayed:
332 = 28kW Combi N.G.
333 = 28kW Combi L.P.G.
334 = 32kW Combi N.G.
335 = 32kW Combi L.P.G.
372 = 36kW Combi N.G.
373 = 36kW Combi L.P.G.
i23 Heat Control Module
(HCM) version number.
For example “4”
Table 17 Information menu listing
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