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The user is responsible for periodically
checking the pressure of the heating sys-
tem.
If water needs to be added too often, have
the technical support centre check if there
are any leaks in the heating system or the
boiler itself.
Water leaks from the safety valve
Check if the filling cock is closed tightly (see
"Filling the heating circuit" on page 13).
Check on the pressure gauge that the heat-
ing circuit pressure is not close to 3 bar.
Should this be the case, drain a part of the
water from the system through the air relief
valves in the radiators in order to reduce the
pressure to a normal value.
In the case of malfunctions oth-
er than those described above,
shut down the boiler as de-
scribed in section "Shutdown"
on page 12 and call a techni-
cian from the authorised service
centre.
3.7 Displays in INFO mode
INFO mode is used to view boiler status in-
formation. In the case of a boiler malfunc-
tion, provide this information to the service
centre so that they can work out its causes.
To access INFO mode, press 18 (Figure
3.3) and hold for 5 seconds until the code
n02 shows on the display (Figure 3.7).
Figure 3.7
USEFUL TIPS
RESET
bar
To scroll through the values, press 12 (in-
crease) and 13 (decrease). Press 17 and
hold for 5 seconds to exit INFO mode (Fig-
ure 3.3).
The table summarises the possible values
visible in INFO mode.
Table of
Value shown
contents
n02
DHW output temp.
n03
NTC return temperature (not
present)
n04
(not used)
n05
Outdoor temperature
n08
(not used)
n09
Modulating operator current
n11
Flow rate
n14
PWM pump speed
percentage
n15
(not used)
n20
(not used)
n21
Last error code
n22
Second-to-last error code
n26
Calculated heating set
point (with climatic curve or
configured set)
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