Valliant ecotec 637 no water sign on display and radiator flashing

[Sam09]

Hi.
i have new installed valliant ecotec 637. The tap button is not showing on the display and the radiator is flashing on the screen. I can press the right button and change all the radiator settings but I am unable to access any of the tap settings as there is nothing on display. Please help!

 

[Scott_D]

637 is a system boiler so just heats
The external controls will decide if that heat goes to radiators or hot water cylinder

 

[Sam09]

637 is a system boiler so just heats
The external controls will decide if that heat goes to radiators or hot water cylinder

So it’s fine if the tap water sign is not showing and I cannot control the temperature?

 

[Gasmk1]

you control the water temperature from the cylinder thermostat

 

[Scott_D]

So it’s fine if the tap water sign is not showing and I cannot control the temperature?

Yes
What controls do you have?

 

[centralheatking]

Hi.
i have new installed valliant ecotec 637. The tap button is not showing on the display and the radiator is flashing on the screen. I can press the right button and change all the radiator settings but I am unable to access any of the tap settings as there is nothing on display. Please help!

So your installer never showed you how to operate your new system boiler ? It’s not uncommon
Chking