Hi,
I'm trying to replace a Honeywell BDR91 Thermostat with a Hive Active Heating one. The relay box for my Honeywell had wires going into the following (pic attached)
N
L
A
B
I attempted to match to Hive as follows (pic attached)
N
L
A=1 (common)
B=3 (heating ON)
However no power seems...