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Instructions for the user
1.15.4 Shut-down for fan malfunction
The fan operation is constantly monitored and in case of malfunction the burner goes of; the code
E40
lashes on the display.
This mode is maintained until the fan recovers normal working parameters.
If the boiler does not start and remains in this mode, contact a service centre or a qualiied service engineer.
1.15.5 Alarm due to temperature probe malfunction
The following fault codes are shown on the display in the event of burner shut-down due to a temperature probe fault:
•
E05
for the CH low probe. In this case the boiler ignition is disabled.
•
E12
for boiler water heater probe top part. In this case the boiler does not carry out the DHW function.
•
E15
for the return probe. In this case the boiler does not work.
•
E24
for the solar collector probe. In this case, the water heater CANNOT be heated by the solar collectors. The CH and DHW production
functions operate normally.
•
E27
for the solar valve probe (M, MV and MZ versions). In this case the heat transfer function is disabled.
•
E28
for the solar water heater probe, low part. In this case, the water heater CANNOT be heated by the solar collectors.
•
E36
for CH low probe in one of the installed zones (V, Z, MV and MZ versions). In this case boiler ignition is disabled only for the zone
afected by the fault. All other zones operate correctly.
WARNING
In any case, contact a service centre or qualified personnel for maintenance.
1.15.6 Alarm due to (optional) Remote Control connection malfunction
The boiler recognises whether or not there is a Remote Control (optional, not compulsory).
If the boiler does not receive information from the Remote Control after the Remote Control itself is connected, the boiler attempts to re-
establish communication for 60 seconds, after which the fault code
E31
is shown on the remote control display.
The boiler will continue to operate according to the settings on the touch screen and ignore the Remote Control settings.
WARNING
Contact a service centre or a qualified service engineer to carry out the maintenance.
The remote control can indicate faults or shutdown conditions and can also restore boiler operation after shutdown up to a maximum of 3
times in a 24 hour period.
If the maximum number of attempts is reached, fault code
E99
is shown on the boiler display.
To reset error
E99
, disconnect and re-connect again boiler from/to power mains.
