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Worcester Bosch Greenstar Heatslave 25/32 oil boiler - pressure issues

Discussion in 'Plumbing and Central Heating' started by Kenny M, 22 Nov 2020.

  1. Kenny M

    Kenny M

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    CDBA60EC-6C03-4E2A-9337-9C6D3CC15685.jpeg 79581DC7-71F0-4728-B480-9873C12764A3.jpeg BFBDB113-9480-4CDC-8D03-22ECDDA78C73.jpeg Hi,

    can anyone advise how I re-pressurise the system on this boiler. Heating seems to be ok but my hot water is constantly luke warm and thinking it may be something to do with pressure?

    any help appreciated

    thanks
     
  2. Kenny M

    Kenny M

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    Hi, when I took photos on above post the heating was off, no pressure, no hot water but water set to ‘always on’. I’ve since turned the heating on and the pressure increased to 1.5 which is good and we have hot water after running the hot water tap for 30 secs or so. So it appears we’re only getting hot water when the heating is on? Any advice, thoughts on what this could be?
     
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  4. Terrywookfit

    Terrywookfit

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    The pressure should be around 1 bar when cold, The filling loop will be under the top cover.
    Check the expansion vessel charge first. It is my experience on this model that it will be full of water as they are rarely big enough when new.
     
  5. ianmcd

    ianmcd

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    As @Terrywookfit says your expansion vessel needs properly re-charged
     
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