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Yes I pulled out all the old wiring from the wiring centre and started again. I bought a new wiring centre box and remade all of the connections so nice and neat. My boiler has a pump run on so pump is controlled by boiler. Fortunately I had two runs of 3 core running up from from the boiler so...

After spending hours today trying figure this out I finally discovered that somewhere between the kitchen (boiler, controller and isolator) and upstairs airing cupboard (valves, pump and wiring centre) someone has joined the controller C/H ON output and the boiler heat demand wires together. I...

I will take some pics tomorrow - im not sure you will get much from them. It doesn't seem to follow any of the typical plans. I have noticed that the boiler will randomly start even when the hive is not demanding heat.

Hi All - I have just installed a Hive Dual Channel Thermostat for heating and hot water. It is replacing an old Honeywell ST9400C and a Potterton mechanical type room stat. First up In a previous life I was an electrician and as such consider myself able to understand and perform this work...