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  1. S

    Question about Combi Boiler external expension vessel

    Hello. We have a Heatline C28 combination boiler that has been leaking water & going over pressure. It was recently diagnosed that the leak was coming from the 3 way diverter valve & that the pressure problems was been caused due to problem with the expansion vessel. The person who looked at...
    • Steve Lewis
    • Thread
    • boiler combi combi boiler vessel
    • Replies: 4
    • Forum: Boilers
  2. S

    Heatline C24 pressure going too high

    Hello, We have a heatline C24 boiler & when the heating is on the pressure gauge is going up into the red to as high as 3.5bar, When the heating is off it sits at around 1.3-1.5bar. I turned it off & waited a few hours for it to settle & drained some water via a radiator bleed valve to relieve...
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