I have had a look through the manual and can't find where the diverter valve is at. Clearly mentioned on the diagram for the combi max but not on the diagram for the vortex combi. Any ideas? Yes it is under guarantee.
We have a brand new Grants Outdoor vortex combi boiler which gives intermittent hot water. If the central heating is on there is a constant supply of hot water. If the heating is off you have a 25% chance of getting hot water. The boiler sometimes fires up after 2-5 minutes and starts supplying...