87
ES
PT
ENG
at 70°C.
Before activating the chimney sweep func-
tion make sure that the radiator valves or
eventual zone valves are open.
The test can also be carried out with the
boiler working in D.H.W. mode.
For this, after activating the chimney sweep
function, open one or more hot water fau-
cets.
Under these conditions, the boiler will func-
tion at maximum power with the D.H.W.
kept at between 60°C and 50°C.
During the test, the hot water faucets
must remain open.
For exit to the chimney sweep function
press the key
of the control panel.
The chimney sweep function will automa-
tically switch off after 15 minutes from
the activation.
4.5
FUNCTIONING ANOMALIES
When there is a functioning anomaly, an
alarm appears on the display
and switch
on the red led.
Descriptions of the anomalies with relative
alarms and solutions are given below:
–
FUMES DISCHARGE ANOMALY
ALARM 01 (fig. 24)
OPEN BOILER (OF):
The display shows “AL 01”.
The fumes thermostat has intervened.
The boiler stops for an enforced period
of 10 minutes.
At the end of this period, the boiler re-
attempts ignition.
If the anomaly is repeated three times in
24 hours, the boiler blocks.
Press the key
of the controls to
start up the boiler again.
SEALED BOILER (BF):
The fumes thermostat has intervened. If
the condition causing the problem persi-
sts for two minutes, the boiler stops for
an enforced period of thirty minutes.
At the end of this period, the boiler re-
attempts ignition.
–
LOW WATER PRESSURE ANOMALY
ALARM 02 (fig. 24/a)
If the pressure detected by the water
pressure valve is lower than 0.5 bar, the
boiler stops and the display shows the
alarm “AL 02”.
Bring the pressure back to normal by
means by acting on the telescopic loa-
ding knob.
Lower the knob and turn it anti-clockwise
to open until the pressure indicated on
the hydrometer reaches 1 - 1.2 bar.
WHEN FILLING HAS BEEN COMPLETED,
CLOSE THE KNOB BY TURNING IT
CLOCKWISE.
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).
–
D.H.W. SENSOR ANOMALY ALARM 04
The D.H.W. probe is not envisioned in
these boiler models; if the display shows
the AL 04 anomaly, check PAR 2.
–
HEATING SENSOR ANOMALY ALARM
05
If one or both sensing elements of hea-
ting sensor (SM1/SM2) are open or
short circuited, the boiler will not func-
tion and the display will show the alarm
“AL 05”.
–
FLAME BLOCK ALARM 06 (fig. 24/b)
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 “AL 06”.
Press the key
of the controls to start
up the boiler again.
–
SAFET Y THERMOSTAT ANOMALY
ALARM 07 (fig. 24/c)
If the C.H. sensor (SM1/SM2) exceeds
the 100°C the boiler does not ignite the
burner, the display show AL 07 and
remains ignited the green led. If this con-
dition restored more one minute, the
boiler will stop, the display show always
the anomaly AL 07 and switch on the
red led.
Press the key
of the controls to start
up the boiler again.
–
PARASITE FLAME ANOMALY ALARM
08
If the flame control section recognises
the presence of flames also in phases
when they should not be present, it
means there is a breakdown in the flame
detection circuit; the boiler will stop and
the display will show anomaly “AL 08”.
–
AUXILIARY SENSOR ANOMALY
ALARM 10
ONLY FOR BOILER WITH SOLAR PLANT
COUPLING (
PAR 2 = 10 or 14
):
D.H.W. inlet probe anomaly. When the
probe is open or short circuited the boi-
ler looses the solar function and the
display shows anomaly AL 10.
–
MODULATOR ANOMALY ALARM 11
The modulator is not connected.
When during functioning the boiler
detects zero current to the modulator,
the display will show anomaly “AL 11”.
The boiler will function at minimum
power and the anomaly will be de-acti-
Fig. 24
Fig. 24/a
Apre
0
4
1
3
2
bar
Fig. 24/b
Fig. 24/c
OPEN
