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  1. S

    combi pressure loss when running hot water

    One rad replaced but system pressurised and heating fine with pressure maintained Only drops when hot tap opened
  2. S

    combi pressure loss when running hot water

    my combi is running fine on heating side and maintains pressure fine Just recently turning on the hot tap causes a pressure drop on the meter and the hot flow to stop. By opening the filling loop the pressure builds and then the hot feed starts to run again. The hot flow continues whilst the...
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