@RandomGrinch - many thanks for your help.
I reinstalled the Hive receiver this morning, wiring as per your suggestion above.
I initially pressed the "boost" button on the thermostat and the boiler switched on and the radiators started warming. Using the Hive app, I stopped the boost and...
Thanks for the replies - bit pushed for time today, so will have another closer look at this tomorrow. Picture below of the Hive receiver - pretty sure I ordered the combi version!
So you said above, "This is what we would hope to replicate, by using the Hive receivers terminals 1 and 3." -...
Hi. I can see similar discussions but none have the same wiring as mine - so apologies in advance for posting something similar!
I have a Main combi boiler - installed in 2020 - with an EPH CP4 programmable RF thermostat and receiver and have decided to upgrade that to Hive for the convenience...