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user’ manual
Appliance shut-o conditions
The boiler is protected from malfunctions by means of internal
checks performed by the electronic P.C.B., which stops the boiler
from operating if necessary. In the event of the boiler being shut o
in this manner, a code appears on the control panel display which
refers to the type of shut-o and the reason behind it.
Two types of shut-o may occur:
Safety shut-o
This type of error is “volatile”, which means
that the boiler starts up again automatically
as soon as the problem which caused the
shut-o is removed. The display will ash
”Err” and the error code.
In fact, as soon as the cause of the shut-o disappears, the boiler
starts up again and continues to operate normally.
While the boiler is shut o for safety reasons, it is possible to attempt
to restore normal operation by switching the appliance o and on
again using the ON/OFF button on the control panel.
If the boiler still indicates a safety shut-o, switch it o. Make sure
the external electric switch is in the OFF position, close the gas tap
and contact a qualied technician.
Safety shut-o due to insucient water pressure
If the water pressure inside the heating circuit is insucient, the
boiler will perform a safety shut-o. (See table).
To re-pressurise the boiler, it will be necessary to connect
the silver exible hose supplied to the two isolating points
underneath the boiler, once the hose is connected, open up both
of the black quarter turn handles, once the pressure reads 1.5 bar
on the display, close both handles and disconnect the hose .
If the pressure drops very frequently, there may be a water leak
at some point in the system. If this is the case please contact your
installer and ask them to check it.
Operation shutdown
This type of error is “non volatile”, which means that it is not
removed automatically. The display will ash Err and the error
code and the red led lights up “3” .
In this case the boiler does not restart automatically, but it may
be reset by pressing the button. If the problem manifests
itself again after several attempts to reset the appliance, contact a
qualied technician.
IMPORTANT
IF THIS SHUTDOWN OCCURS FREQUENTLY, CONTACT AN
AUTHORISED SERVICE CENTRE FOR ASSISTANCE. FOR SAFETY
REASONS, THE BOILER WILL ALLOW A MAXIMUM OF 5 RESET
OPERATIONS TO TAKE PLACE IN 15 MINUTES (INDIVIDUAL
PRESSES OF THE BUTTON).
Operation shutdown error table
Anti-frost Device.
The anti-frost function acts on the central heating ow temperature probe,
independently from other settings, when the electrical supply is turned
on.
If the primary circuit temperature falls below 8°C the pump will run for 2
minutes.
After the two minutes of circulation (xed) the boiler will check the fol-
lowing:
a) if the central heating ow temperature is > 8°C, the pump stops;
b) if the central heating ow temperature is between 4 and 8°C, the pump
will run for another two minutes;
c) if the central heating ow temperature is < 4°C, the burner will re
(heating position) at minimum power until the temperature reaches
33°C, the burner will go
o and the pump will continue to run for two
minutes.
The anti-frost device activates only when (with the boiler operating cor-
rectly):
- the system pressure is correct,
- the boiler is electrically powered,
- there is a supply of gas.
Display Description
1 01 Overheating
5 01 No ame detection
1 03
Insucient circulation
1 04
1 05
1 06
1 07
3 05
P.C.B error
3 06
P.C.B error
3 07
P.C.B error