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Fig. 3.4
In order to reset good function-
ing of the boiler, call a compe-
tent and responsible Service
Engineer.
Noise due to air bubbles are heard dur-
ing operation
Check that the F&E tank ball valve is oper-
ating correctly.
Bleed any air present in the radiators, if nec-
essary.
If water should occasionally leak from
the boiler
Shut off the valves and call an Authorised
Service Centre Engineer.
In this case or in case of prob-
lems other than those men-
tioned here, switch off the boil-
er, as described in section
"Switching off" on page 15
and call a competent and re-
sponsible Service Engineer.
3.7
Displaying in INFO mode
The INFO mode allows the display of some
information on the boiler functioning status.
In case of malfunctioning of the boiler, it may
be useful to communicate such information
to the Authorised Service Centre Engineer
- 18 -
USEFUL ADVICE
so that the causes can be understood.
In order to access the INFO mode, press
keys 9 and 11 (Fig. 3.5) at the same time
until the letter d appears on the display that
alternates with a code (Fig. 3.6).
Fig. 3.5
Fig. 3.6
To scroll the values press 10 (reduce) and
11 (increase) keys. In order to exit the INFO
mode, hold keys 9 and 11 (Fig. 3.5) pressed
at the same time.
The table summarises the possible values
visible in INFO mode.
Value visualised
Primary circuit pressure (not
present)
External temperature
K curve value configured in
settings
12
11
10
9
Index
d0 + - -
d1 + value
d2 + value
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