Appliance Shut-Off Conditions; Anti-Freeze Protection; Maintenance - Ariston FAST EVO User Manual

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 the event of lockout, the red LED lights - see table
below.
To restore the system, switch ON/OFF the device.
Error code table
Red
Description
L.E.D.
Fixed Battery exhausted Replace battery
No hot water
Single produced
fl ash The appliance
won't start
Double
fl ash
Three Switch OFF the appliance - turn the knob
fl ashes to the OFF position, close the gas valve,
remove the batteries.
Four
Contact a qualifi ed technician.
fl ashes
Five
fl ashes
If the appliance won't start again or stops repeatedly,
once you've carried out the relevant checks, turn
the knob to the OFF position, close the gas valve,
remove the batteries and contact a qualifi ed
technician.
SHOULD THE ERROR NOT BE ELIMINATED, DO
NOT ACTIVATE THE APPLIANCE.
WARNING!!
NEVER TAMPER WITH OR DECOMMISSION THE
FLUE GAS SENSOR. THIS COULD AFFECT THE
PROPER OPERATION OF THE APPLIANCE.
POOR DRAUGHT
CAUSE EXHAUST GAS BACKFLOW INTO THE
INSTALLATION ROOM.
HAZARD OF CARBON MONOXIDE INTOXICATION
Checks to make
- Ensure that the
gas isolation valve
is open
- Ensure that
the inlet water
isolation valve is
open
- Ensure the knob
is not in OFF
position
- Check/Replace
batteries
CONDITIONS COULD
Temporary Shut-Off due to defective fl ue gas
discharge
This device causes the applaince to shut down in the
event of an anomaly in the fl ue gas discharge.
The appliance shutdown is temporary.
After 12 minutes, the aplliance begins the ignition
procedure; if normal conditions have been restored, the
appliance operates as normal. If not, it shuts down and
the cycle is repeated.
WARNING
In the event of a malfunction or if repeated intervention
is required:
- switch the appliace off,
- close the gas valve,
- remove the batteries,
- contact the Technical Assistance Service or a qualifi ed
technician in order to repair the fl ue gas discharge
fault once the cause of the malfunction is detected.
Whenever maintenance work is performed on the
device, use original spare parts only and follow the
relative instructions carefully.

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 knob to OFF position to switch off the
appliance.
- Remove the batteries
- 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.

Maintenance

Schedule an annual maintenance check-up for the
appliance with a competent person.
Correct maintenance always results in savings in the
cost of running the system.
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