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COMMISSIONING
Reset function
To reset boiler operation in the event of a fault, press
the RESET button. At this point, if the correct operating
conditions have been restored, the boiler will restart au-
tomatically. Up to 5 consecutive reset attempts can be
made on the interface, after which the display will show
code E099. In this case, the boiler must be disconnected
from the electricity supply and then reconnected again,
to reactivate operation.
DAY
9
If the reset attempts fail to activate boiler opera-
tion, contact the Aftersales Service.
Fault E020: in the event of frequent intervention of the
limit thermostat, check whether parameter P4.11 is pro-
grammed at 1 and take it to 0 to reset the timings envisa-
ged for the heating phases.
Fault E041: if the pressure value falls below the safety value
of 0.8 bar, the boiler shows fault code E041 for 10 min.
When the transitional time has finished, if the fault per-
sists the fault code E040 is displayed.
When fault E040 has occurred, the boiler must be man-
ually filled via a filling system (to be installed on the
system, preferably connected to the return line) until the
pressure is between 1.5 and 2.0 bar.
List of anomalies
ERROR CODE
E010
E011
E020
E030
E040
E041
E042
E060
E070
E080
E090
E091
E058
E059
E099
CFS
SFS
< 0,8 bar
>5,0 bar
DAY
DAY
ERROR MESSAGE
Flame lockout
Condensate drain obstructed
Flue gas exhaust/air suction obstructed
Diff erential pressure switch
Extraneous fl ame
Limit thermostat
Fan fault
Fill the system
Fill the system
Pressure transducer fault
DHW probe fault
Flow sensor fault
Flow sensor overtemperature
Flow/return sensor diff erential
Return probe fault
Return probe overtemperature
Return-fl ow sensor diff erential
Flue gas probe fault
Clean primary heat exchanger
Low power supply voltage
High power supply voltage
Reset attempts exhausted
Call Service
Stop for Service
Low pressure - check system
High pressure - check system
Then press RESET.
Close the filling system, making sure you hear the me-
chanical click. After filling, run the automatic venting
cycle as explained in paragraph "2.14 Filling the heating
system and eliminating air".
9
If pressure drops happen very frequently, contact
the Aftersales Service.
Fault E060: on heating-only models with a storage tank
with probe connected, fault E060 prevents operation in
DHW mode.
Fault E091: the boiler has an auto-diagnostic system
which, based on the total number of hours in certain
operating conditions, can signal the need to clean the
primary exchanger (alarm code E091).
Once the cleaning operation has been completed, reset to
zero the total hour meter with special kit supplied as an
accessory following procedure indicated below:
ƒ access the technical parameters as explained in para-
graph "1.17 Accessing the parameters"
ƒ select menu P3 and then item P3.12, using the
buttons
ƒ set the parameter value at 1, confirming with
NOTA: The meter resetting procedure should be carried
out after each in-depth cleaning of the primary
exchanger or if this latter is replaced.
The total hours can be verified in the following way:
ƒ access the INFO menu as explained in paragraph
"3.22 INFO menu" and visualise item I015 to see the
value of the flue gas probe meter.
40
DAY
Enter
DESCRIPTION OF TYPE OF ALARM
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