Ariston VELIS TECH R ABS 80 - Инструкция по эксплуатации - Страница 54

53 / EN

ANTI-FREEZE FUNCTION
(models with the interface shown in Fig. 8a/b)

The anti-freeze function automatically protects the appliance, preventing damages caused by very low 
temperatures, below 5°C, if the product is switched off during the winter season. We recommend leaving 
the product connected to the mains electricity, even in case of prolonged inactivity. Once the temper-
ature rises to a safer level that prevents damages caused by ice or frost, the water heating function 
switches off again.
The function is enabled, but in case of activation it does not indicate whether the product is ON. When 
the product is switched off using the ON/OFF button “ ”, if the anti-freeze function is active the display 
will show “AF” (Anti-Freezing).

THERMAL DISINFECTION FUNCTION (Anti-Legionella)
(models with the interface shown in Fig. 8a/b)

The Anti-Legionella function is activated by default. It consists of a water heating/60°C temperature 
maintenance cycle for 1 hour which has a thermal disinfection action on the relative bacteria.
The cycle starts when the product is started up and when it is restarted after a power outage. If the prod-
uct always functions at temperatures lower than 55°C, the cycle is repeated after 30 days. 
When the product is switched off, the anti-Legionella function is deactivated. If the equipment is switched 
off during the anti  Legionella cycle, the product switches off and the function is deactivated.
At the end of the cycle, the use temperature returns to the temperature previously set by the user.
To activate this function, simultaneously press and hold the “ON/OFF” and “

” buttons for 3 seconds; 

the display will show “A1” for 4 seconds to confirm the activation. To deactivate the function permanently, 
repeat the operations described above; the display will show “A0” for 3 seconds to confirm the deacti-
vation.

RESET/DIAGNOSTICS 
(models with the interface shown in Fig. 8a/b) 

Whenever one of the following faults occurs, the appliance enters the “fault mode” and the status indi-
cator (

Fig. 8a/b Ref.1

) will be lit red and flashing.

Diagnostics:

 The type of malfunction is indicated on the display, which will show “Er” flashing, alternating 

with the relevant error code, according to the following scheme:

01

   -  internal malfunction of the circuit board

61/62 

 - internal malfunction of the circuit board (NFC communication or NFC data)

10

   - broken temperature probes (open or short circuited) - boiler outlet

11

   - excessive water temperature detected by single sensor - boiler outlet

12

   - general excessive water temperature (circuit board fault) - boiler outlet

14

   - Failure to heat water with powered heating element - boiler outlet

15

   -  overheating caused by lack of water - boiler outlet

20

    - broken temperature probes (open or short circuited) - boiler inlet 

21

   - excessive water temperature detected by single sensor - boiler inlet

22

   - general excessive water temperature (circuit board fault) - boiler inlet

24

   - failure to heat water with powered heating element - boiler inlet 

25

   - overheating caused by lack of water - boiler inlet

60

    - 

Wi-Fi communication failure (models with the interface shown in Fig. 8a

Error reset: 

reset the appliance by switching off and on from the ON/OFF “ ” knob.

If the cause of the malfunction disappears immediately when reset, the appliance resumes its regular 
operation. On the contrary, if the error code continues to appear on the display: contact the Technical 
Service Center.