82
If the connection with the safety thermo-
stat/limit thermostat is interrupted, the
boiler will
stop; the flame control will
remain waiting to be switched off for one
minute, keeping the system pump on for
that period.
If, the thermostat connection is restored
within the minute, the boiler will start up
working normally again, otherwise it will
stop and the display will show the alarm
ALL 07.
Press the key
5
3
1
2
4
of the controls (2) to
start up the boiler again.
–
PARASITE FLAME ANOMALY ALARM 08
(fig. 23/7)
If the flame control section recognises
the presence of flames also in phases
when they should not be present, it me-
ans there is a breakdown in the flame
detection circuit; the boiler will stop and
the display will show anomaly ALL 08.
–
WATER CIRCULATION ANOMALY
ALARM 09 (fig. 23/8)
There is no water circulation in the pri-
mary circuit. If the anomaly occurs upon
first request, the boiler performs a ma-
ximum of three attempts to assure the
presence of water inside the primary
circuit; it then stops showing on the di-
splay the ALL 09 anomaly. If the anomaly
occurs during normal functioning, the
display immediately shows the ALL 09
anomaly, keeping the plant pump and
the eventual boiler pump, switched on
for 1 minute. In this case there was a
sudden increase of the boiler inner tem-
perature. Check to see if there is water
circulation inside the boiler and check if
the pump is operating properly.
To exit the anomaly press the
5
3
1
2
4
but-
ton of the controls (2).
Request assistan-
ce from qualified technical personnel.
–
AUXILIARY SENSOR ANOMALY ALARM
10 (fig. 23/9)
When the antifreeze siphon
sensor (SA)
or D.H.W. sensor L.2000 (SB) is open
or short circuited, the display will show
anomaly ALL 10.
–
ACTIVATION OF THE “ALL 13” EXHAUST
FUMES PROBE (fig. 23/10)
The activation of this probe causes the
boiler to stop and error message ALL 13
to display.
Press the key
5
3
1
2
4
of the controls (2) to
start up the boiler again.
–
“ALL 14” EXHAUST FUMES PROBE ER-
ROR (fig. 23/11)
If the exhaust fumes probes is open or
short-circuited, the boiler stops and er-
ror message ALL 14 displays.
–
“ALL 15” FAN ERROR (fig. 23/12)
The fan speed does not fall within the ra-
Fig. 23/7
Apre
2
2
2
Circuito
riscaldamento 2
Circuito
riscaldamento 3
(impianto tre
zone)
Fig. 23/6
Apre
2
2
2
Circuito
riscaldamento 2
Circuito
riscaldamento 3
(impianto tre
zone)
Apre
2
2
2
Circuito
riscaldamento 2
Circuito
riscaldamento 3
(impianto tre
zone)
Fig. 23/9
Apre
2
2
2
Circuito
riscaldamento 2
Circuito
riscaldamento 3
(impianto tre
zone)
Apre
2
2
2
Circuito
riscaldamento 2
Circuito
riscaldamento 3
(impianto tre
zone)
Apre
2
2
2
Circuito
riscaldamento 2
Circuito
riscaldamento 3
(impianto tre
zone)
Fig. 23/10
Fig. 23/11
Apre
2
2
2
Circuito
riscaldamento 2
Circuito
riscaldamento 3
(impianto tre
zone)
Apre
2
2
2
Circuito
riscaldamento 2
Circuito
riscaldamento 3
(impianto tre
zone)
Apre
2
2
2
Circuito
riscaldamento 2
Circuito
riscaldamento 3
(impianto tre
zone)
Fig. 23/8
