6
2. user instructions
2.6. Switching off procedure
Press the ON/OFF button
“2”
, to switch off the appliance.
The display indicates only two hyphens.
To switch off the device completely, turn the external electric
switch off and close the gas isolation valve.
2.7. Appliance shut-off conditions
The appliance is protected from malfunctions by means of
internal checks performed by the electronic P.C.B., which
stops the appliance from operating if necessary.
In case of shut-off, the fl ame symbol disappears from the
display, which indicates an error code – see table below.
To reset the appliance, hold down the ON/OFF button and
release when the word RESET appears.
Should the error signal persist, switch off the appliance, close
the gas isolation valve, turn the external electric switch off
2.8 Anti-freeze protection
Should the appliance be installed where pipes are subjected
to freezing, it is recommended to empty it.
Proceed as indicated below:
- Turn the outer electrical switch to the OFF position
- Close the gas isolation valve
- Close the cold water inlet isolation valve
- Open the DHW taps until both the appliance and pipes are
completely emptied.
To fi ll the appliance again, open the cold water inlet isolation
valve together with DHW taps until water fl ows steadily from
all taps
.
and contact a qualifi ed technician.
Error code table
Error
code
Description
After pressing the ON/OFF key,
the control board switches off
- Ensure that the
device is electrically
powered.
A 1
A 1
No fl ame detected
- Ensure that the gas
isolation valve is open
- Hold down the ON
/ OFF button. The
appliance starts the
RESET procedure.
Release the button
as soon as the RESET
message appears.
Should the error code be not indicated in the table, close the
gas isolation valve, turn the external electrical switch off
and contact a qualifi ed technician.
SHOULD THE ERROR NOT BE ELIMINATED, DO NOT ACTIVATE
THE APPLIANCE.
