i changed my indirect hot water cylinder it still warms the water inside cylinder but since then no water at all to hot taps all stop cocks are open have tried cold water mains to hot to push it through but nothing my central heating works the cold water from tank works there is no water coming out of hot taps at all
You have an airlock from the hot water outlet that leaves the top of the cylinder. This horizontal pipe from the top of the cylinder should be at a slight upward direction until it joins the vertical hot water pipe.It should also be a minimum of 22mm diameter pipe.
If there is a slight downward dip in the horizontal pipe it will cause airlocking and that is why you do not have any water at your hot water taps. You will need to repipe the pipework from the cylinder.
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