Operation Shutdown - Ariston benchmark GENUS HE SYSTEM User Manual

User's manual
Appliance shut-off 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
off in this manner, a code appears on the control panel display
which refers to the type of shut-off and the reason behind it.
Two types of shut-off may occur:
Safety shut-off
This type of error is "non-volatile", which means that the boiler
starts up again automatically as soon as the problem which caused
the shut-off is removed; Err and the error code (e.g. Err/111) )
flash on the display and the
In fact, as soon as the cause of the shut-off disappears, the boiler
starts up again and continues to operate normally.
While the boiler is shut off for safety reasons, it is possible to
attempt to restore normal operation by switching the appliance
off and on again using the ON/OFF button on the control panel.
If the boiler still indicates a safety shut-off, switch it off. Make sure
the external electric switch is in the OFF position, and contact a
qualified technician.
Safety shut-off due to insufficient water pressure
If the water pressure inside the heating circuit is insufficient, the
boiler will perform a safety shut-off.
Code 111 (e.g. Err/111) will appear on the display, in addition
to the symbol.
To re-pressurise the boiler, it will be necessary to connect
the silver flexible 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.
Note: Connections viewed from behind boiler

Operation shutdown

This type of error is "volatile", which means that it is not removed
automatically. The display will flash Err and the error code, and
appears with the symbol .
In this case the boiler does not restart automatically, but it may
be reset by pressing the
itself again after several attempts to reset the appliance, contact a
qualified technician.
No ame detected
6
symbol appears.
button. If the problem manifests
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).
IF THE SHUTDOWN IS OCCASIONAL OR AN ISOLATED EVENT,
THIS IS NOT
NECESSARILY A PROBLEM.
Operation shutdown error table
D D
ISPLAY ESCRIPTION
1 01
Overheating
5 01
No flame detection
1 0
1 04
1 05
Insufficient circulation
1 06
1 07
1 11
Insufficient water pressure
 05
P.C.B. error
 06
P.C.B. error
 07
P.C.B. error
Anti-frost Device.
The anti-frost function acts on the central heating flow 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 
minutes.
After the two minutes of circulation (fixed) the boiler will check the fol-
lowing:
a) if the central heating flow temperature is > 8°C, the pump stops;
b) if the central heating flow temperature is between 4 and 8°C, the pump
will run for another two minutes;
c) if the central heating flow temperature is < 4°C, the burner will fire
(heating position) at minimum power until the temperature reaches
°C, the burner will go off 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, the symbol
- there is a supply of gas.
is illuminated;