4.6
FUNCTIONING ANOMALIES
When there is a functioning anomaly, an
alarm appears on the display and the blue
luminous bar becomes red.
Descriptions of the anomalies with relative
alarms and solutions are given below:
– LOW WATER PRESSURE ANOMALY
ALARM 02 (fig. 23/1)
If the pressure detected by the transdu-
cer is lower than 0.5 bar, the boiler
stops and the display shows the alarm
ALL 02. Lower the knob and turn it anti-
clockwise to open until the pressure indi-
cated by the transducer is between 1
and 1.5 bars.
If the load procedure has to be repea-
ted several times, it is advisable to
check that the seal of the heating cir-
cuit is intact (check that there are no
leaks).
– HIGH WATER PRESSURE ANOMALY
ALARM 03 (fig. 23/2)
If the pressure detected by the transdu-
cer is more than 4.8 bar, the boiler
stops and the display shows anomaly
ALL 03.
– C.H. FLOW SENSOR ANOMALY
ALARM 05 (fig. 23/4)
If the C.H. flow sensor (SM) is open or
short circuited, the boiler will not func-
tion and the display will show the alarm
ALL 05.
– FLAME BLOCK ALARM 06 (fig. 23/5)
If the flame control has not detected the
presence of the flame after a complete
ignition sequence, or for any other rea-
son the card cannot "see" the flame, the
boiler will stop and the display will show
the alarm ALL 06.
Press the key
of the controls (2) to
start up the boiler again.
2
ES
PT
ENG
Fig. 23/1
Fig. 23/2
Fig. 23/4
Fig. 23/5
93