yes it's a combi and it has a separate controller. If I put the water to constant on the controller nothing happens to the control panel on the boiler. and unfortunately I'm still waiting for the electrician to fit the manual switch on the tank.
central heating fine but no more hot water - display only shows the tap symbol, plus and minus buttons do nothing and the mode button only produces 'no' on the screen. very grateful for any suggestions as desperate for a bath! thank you