Trouble connecting new Tado Wireless receiver to new boiler.
I've had to get a new boiler - Vallant ecoFIT pure 825-835. The existing wireless receiver did'nt seem to be working, so decided to get a Tado wireless kit.
The problem is that the heating engineer can work out how to wire the Tado unit in toe boiler PCB. I've
I have looked on line and cannot find anything similar.
Where are the corresponding blue and brown wires that are in CH COM & CH NO supposed to fit in the connector?