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Important note: Dielectric junctions must be fitted to all models as they prevent an
electrolytic reaction and safeguard against potential aggressive corrosion.
User instructions
Recommendations
- Do not place anything under the water heater which may be damaged by a leak.
- If the water is not used for a long time:
➣ shut off power to the appliance by setting the external switch to "OFF";
➣ close the water circuit cocks.
- Water heated to over 50C can cause immediate serious burns or even death.
Children, disabled persons and the aged are particularly at risk of burns.
Do not attempt to service or repair the appliance.
Reset/Diagnostics
When any of the faults described below occurs, the device goes into fault status and
all the LEDs on the control panel flash simultaneously.
Reset: reset the appliance by switching it off and on from the key (A fig.6). If the cause
of the fault disappears when reset, the appliance resumes its regular operation.
Otherwise, all the LEDs start to flash again and Technical Assistance must be
requested to intervene.
Diagnostics: activate the diagnostics by pressing the key (A fig.6) for 5 seconds.
The indication of the type of fault is provided via 5 led (1➔5 fig.6) according to the
following diagram:
LED ref. 1 – Fault inside the board;
LED ref. 2 - Fault at the anode (in models with an active anode);
LED ref. 3 - Faulty NTC 1/NTC 2 temperature sensors (open or short circuited);
LED ref. 5 - Water over temperature detected by a single sensor;
LED ref. 4 and 5 - General over temperature (board failure);
LED ref. 3 and 5 - Probe differential error;
Exit the diagnostics by pressing the key (A fig.6) or wait 25 s.
Activating the "thermal disinfection cycle" (anti-legionella)
The product has the "thermal disinfection cycle" disabled by default.
The activation of the "thermal disinfection cycle" is displayed as a normal temperature
setting at 60°C.
Activate this function by pressing and holding both the "ECO" and "+" keys for 4 s.;
once activation is confirmed, LED 60 will flash quickly for 4 s.
Permanently deactivate the function by repeating the above steps; once the
deactivation is confirmed, LED 40 will flash quickly for 4 s.
Adjusting the temperature and activating the functions of the device
Switch the device on by pressing the key (A fig.6). Set the desired temperature by
selecting a level between 40°C and 80°C using the ”+” and “-“ buttons. During the
heating phase, the LEDs (1➔5 fig.6) related to the temperature reached by the water
remain on; the subsequent ones until the temperature is set, flash progressively. If the
temperature drops, for example due to water being drawn, the heating is automatically
reactivated and the LEDs between the last one on (steady) and that related to the set
