Deactivating dosing pushbuttons
D Press the stop pushbutton (D) and keep it pressed.
D Select the dosing pushbutton to be blocked (A, B or C) and press it until both lamps (1 and 2) start flashing.
D Release the pushbuttons.
A maximum of 2 dosing pushbuttons can be blocked.
De−blocking is done in the same way, only then both lamps will be continuously lit instead of flashing.
Starting the calibration program
The calibration program is only accessible if the boiler has been filled and the temperature is lower than 50ºC.
D Press the stop pushbutton (D) and keep it pressed while you press the C button.
D Release button (D) and keep button C pressed until lamp 2 blinks (rapidly).
D Release button C ((lights 1 and 2 will blink as long as the calibration program is busy).
Resetting the descaling indicator
When the number of litres has been reached, L2 starts flashing normally.
D Press the stop pushbutton D until L2 is lit continuously.
D Release the stop pushbutton so that L2 goes out
D Within 1 second, press the stop pushbutton again and keep it pressed until L2 is lit continuously again.
D The descaling counter has now been reset.
Please note:
− The procedure for resetting the descaling counter also applies of the counter has not yet reach the set
quantity.
HWA 40 / HWA 70
B
A
D
1
C
2