Hi, I wonder if you could help? just had a Worcester 28cd1 fitted (about 4 years old). When it was first fitted (3 days ago) everything was fine but as soon as the plumber left and I switched the heating off and tried to use the hot water on it's own. The burners ignited but water was only luke warm also the boiler started to make banging noises and the needle on the gauge is flicking as it's happening.
I called the plumber back who changed the pump and it doesn't make any noise now but the hot water will kick in sometimes but not others.
In fact the only time the hot water works 100% is when the heating is on?
I would appreciate any help, thank you
I called the plumber back who changed the pump and it doesn't make any noise now but the hot water will kick in sometimes but not others.
In fact the only time the hot water works 100% is when the heating is on?
I would appreciate any help, thank you