The Efficient Home Forum

I have the same issue with mine, its a fundamental flaw with the Evohome system itself, nothing to do with Signals that Honeywell would like you to think, I have three BDR 91 relays controlling my system all 300mm apart, two control the water and heating valves the third controls the boiler, the ...

it sounds like they are double bound, I had the same problem on a S plan system, if you reset both BDR relay boxes and also the main controller, do a factory reset on the main controller and then separate the batteries so it reboots and does a hard reset.

Then go through the guided binding process ...

Have you tried the custom configuration menu ?

Hi

I currently have a S plan system fitted and installed and wired Evohome as per the wiring diagram for this type of system, I also installed the hot water kit at the same time, when I came to set the system up and went through the guided configuration I could get the hot water BDR to turn on and ...