background image

To manually turn the boiler on or off, you must press 

the 

top button

.

To reset device to factory settings and reconfigure internet 

settings, you must press the 

back left button

.

To set the device to pairing mode, you must press the 

back right  button.

BUTTONS

Top Button

Back left 

Button

Power Led

Led Status

Pairing Led

Wi-Fi Led 

-

Heater Led

On

Off

Steady light is on

Light is off.

Remote software update 

in progress

Light blinks quickly.

Light blinks slowly.

-

If the 220V power cable is 

plugged in but the led 

light is not on, ensure that 

there is not a power 

outage.

Connected

Pairing incomplete

Alarko by Cosa cannot 

communicate with paired 

device

Alarko by Cosa is ready 

for pairing

If Alarko by Cosa cannot 

communicate 

with paired device, ensure 

that the other device is not 

located too far and that it is 

turned on.

Alarko by Cosa is connected 

to the Internet

Internet connection 

settings incomplete

Alarko by Cosa cannot connect 

to the internet

Alarko by Cosa is ready for 

internet connection settings 

to be completed

If Alarko by Cosa cannot 

connect to the internet, 

check your internet 

connection.

Heater on

Heater off

-

-

If the led is on but the boiler 

does not work, ensure that the heater

connection cable is installed and 

that your heater is not 

malfunctioning.

Experiencing an issue ?

Back Right 

Button

ABC-WHU-IM-4.2

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