why is my combi boiler not giving me any hot water? no water at all from the hot tap. cold water is fine and the heating is fine but not a drop from the hot tap.
it's a valiant ecotec plus 831 and it has never given us any problems before.
I only noticed the problem after spotting that the booiler pressure was very low and then, when I tried to use the filling loop, nothing happened. normally when I open the valves I can hear water rushing in but this time there was silence.
I turned the boiler off and on and the heating fired up which raised the pressure to normal but then I realised that the tap was dry.