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Yea when I run CH the pump starts as normal and the motorised 2 port valve opens “I have 4 of these 3 for the central heating one for each floor of my house and one for the hot water” there is a termination block on the side of my hot water cylinder yes. The C is displayed on the boiler and this...

Yes as long as the hot water is on the heating works fine however hot water off the heating will only make the boiler turn on it won’t make the boiler fire up

Yes all of ground floor did apart from the one furthest from boiler was a lot cooler …..

Tried powering down for 10 and starting again and nothing ....... So iv got honeywell valves Wilo Pump Horstmann centraurplus c27 programmer UPDATE ############# So if i run the CH the pump starts up and the motorised valve opens and you can clearly hear and feel the water pumping around...

I didn’t open any valves when I filled no system was off ! However I have found more info out now that if I run the HW and the CH at the same time the heating is working as it should however just running CH on its own I get the call symbol on the boiler however I don’t get the fire light to say...

Right so this is a long one so do bare with me ! Im not gas safe but i am a multiskilled engineer so have rough knowledge when it comes to heating and plumbing etc. So my radiator brackets was coming off my wall so today i valved off the rad and removed it from the wall and refixed the...