Installing extension kit

dangermouse5

Hi

I have tried to install the extension kit. Plus we brought the Tado v3 kit.
We have a Siemens series 2 rwb27 for a valiente turbo tec pro boiler.
I can’t get it to fire up by using the tado v3 kit
I don’t know how to post the pictures on here.
Siemens wireing panel.
N = blue
L = red
1 = 0
2 = Grey
3 = 0
4 = white

How I wire the tado ex kit
N = blue
L = red
1 = grey
2 = white
3 = 0
4 = 0

I’m hoping someone might be able to help me thanks.

13uzz

Hey,

the professional guides helped me :) I had a wire connected wrongly at first but going through the guides made me see the issue

https://www.tado.com/professional-manuals

leechheart

i have a vaillant vuw306 boiler and an extension kit,with the extension kit came an cable with 3 wires blue,grey,,brown. I Put blue wire in bus -at my boiler,brown in bus+ at my boiler,and grey in Rt 2,on the extension kit, i put blue wire in N,brown in L and grey in port 2,my boiler didnt react on my changes,even thow my extention kit is syncronized.What is the problem?
thank you