the display will show anomaly "ALL 08".
– WATER CIRCULATION
ANOMALY ALARM 09 (fig. 23/h)
There is no water circulation in the pri-
mary circuit. If the contacts of the flow
gauge close, the state of anomaly is
immediately quitted. If the anomalous
state persists for one minute, the boiler
is enforcedly stopped for six minutes.
After this time of enforced inactivity, the
boiler will re-attempt ignition.
If the anomaly re-appears, the boiler will
switch off and the display will show ano-
maly "ALL 09".
– D.H.W. SENSOR
ANOMALY ALARM 10 (fig. 23/i)
When the sensor of the D.H.W sensor is
open or short circuited, the display will
show anomaly "ALL 10". The boiler will
function but will not modulate power for
the D.H.W.
– ACTIVATION OF THE "ALL 13"
EXHAUST FUMES PROBE (Fig. 23/l)
The activation of this probe causes the
boiler to stop and error message "ALL
94
13" to display.
Press the key
start up the boiler again.
Fig. 23/g
– "ALL 14" EXHAUST FUMES
PROBE ERROR (Fig. 23/m)
If the exhaust fumes probes is open or
short-circuited, the boiler stops and
error message "ALL 14" displays.
– "ALL 15" FAN ERROR (Fig. 23/n)
Fig. 23/h
The fan speed does not fall within the
rated speed range. If the error condi-
tions persists for two minutes, the boiler
activates a forced stop for thirty minu-
tes. A new start attempt is repeated
after the expiry of this interval of time.
Fig. 23/i
– SAFETY THERMOSTAT INTERVENTION
FIRST MIXED ZONE "ALL 20"
(fig. 23/p)
When it results that the ZONA MIX
board is connected to the boiler the
safety thermostat intervention switches
the mixed zone plant pump, the mix zone
valve closes and on the display the ano-
of the controls (2) to
maly ALL 20. During this anomaly the
boiler continues to function normally.
Fig. 23/l
– DELIVERY PROBE BREAKDOWN ANO-
MALY FIRST MIXED ZONE "ALL 21"
(fig. 23/q)
When it results that the ZONA MIX
board is connected to the boiler and the
delivery probe is open or short circuited
on the display the anomaly ALL 21
appears. During this anomaly, the boiler
continues to function normally.
Fig. 23/m
– SAFETY THERMOSTAT INTERVENTION
SECOND MIXED ZONE "ALL 22"
(fig. 23/r)
When it results that the ZONA MIX
board is connected to the boiler
The intervention of the safety thermo-
stat switches the mixed zone plant
pump, the mix zone valve closes and on
the display the anomaly ALL 22. During
this anomaly the boiler continues to func-
tion normally.
Fig. 23/n
– DELIVERY PROBE BREAKDOWN ANO-
MALY SECOND MIXED ZONE "ALL 23"
(fig. 23/s)
When it results that the ZONA MIX
board is connected to the boiler and the
delivery probe is open or short circuited
on the display the anomaly ALL 23
appears. During this anomaly the boiler
Fig. 23/p
Fig. 23/q
Fig. 23/r