Hi just wondering if anyone has any ideas on how to fix a problem. Just moving into new house and it has vokera combi boiler. Heating all working fine and hot water is hot. We have an external metal pipe (which i would guess is overflow of some kind) and when we open the valve to allow water into the boiler there is water pouring like a tap from the external pipe. There is an adjustable stop cock beside the water valve on the boiler system which when turned reduces the water coming out the pipe but also the water coming out the tap. It's almost as if the boiler just keeps on filling up with water as if it doesn't know it's full. i.e if your toilet just kept on filling up after flushing it would overflow. It's like the boiler doesn't recognise it's full and just keeps on taking water in hence it is pouring out the external pipe. Sorry this is not a very technical description!! Just wondering if anyone has any ideas if there is something we are not turning on etc that would resolve this. Any advice welcomed as no instructions for boiler in the property. Thanks
