I have had a very simple Evo Home system running on my S -plan Heat and DHW. It has run for years trouble free.
I have recently pushed a new controller which came with a new BDR91. I have replaced both on the Heating side which works as expected.
I also have the Hot water kit with CS92 wireless thermostat and BDR91 to control the HW valve. Both have bound successfully, when HW is selected from the controller there is clearly a demand (red HW Icon) but the BRD91 does not operate the valve. It will work if I select the BDR91 manually.
Gone through the process of reseting the BDR91 and rebinding both the CS92 and the HW BDR91a numbest of times.
Any thoughts or help would be great
Mike