I have a vaillant eco tec and the pressure is only 0.8 so therefore the heating is working but there is no hot water. I turn the valves on the feeder pipe to fill the system ( I have done this sucessfully before) but I can't hear water going in like I normally do!? Does anyone know what the problem is and if there is any other way of bringing the pressure up?

Many thanks

Dawnie70, November 2009

I have now managed to get the pressure up but there is still no hot water? The tap symbol doesn't appear on the display? Any ideas?

Many thanks

Dawnie70, November 2009