Recently tried installing Tado v3+ wireless starter kit but left me with no power to boiler
worked out the cable asked to replace in instructions was power to boiler so put both Tado and boiler L and N cables in the relivant ports in boiler and had power
however when it came to test, boiler didn’t fire.
was previously using Salus RT520 thermostat, unsure whether this is wired or wireless to boiler
tried the Tado support with no luck, they didn’t seem to understand.