The Efficient Home Forum

I still have the old evotouch controller and when placed close to the relevant remote radiator try it displays the correct temp on both control units matches +\- a 1/2 degree.
When I issue a command to increase or decrease the temp in a specific room the radiator try display(after a short delay ...

I've read throgh related threads but cannot find a similar fault , apologies in advance if I've missed the solution.

My system:

Evotouch controller atc928g3000

BDR91 linked to ideal combi boiler (50cm tail between boiler and BDR).
Z1
2 X Hr80 within one open room ( living/dining room ). The ...