Worcester E9.24 RSF - no hot water unless CH on

Discussion in 'Plumbing and Central Heating' started by nicksmith100, 18 May 2009.

  1. nicksmith100

    nicksmith100

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    Hi,

    I have what seems a common problem in that I can only get hot water out of my 9.24 when the CH is on. I've read this thread http://www.diynot.com/forums/viewtopic.php?t=25403 as well as many others and think I understand that the problem lies with the DV and it will need replacing.

    However, in the mean time is there a knack to getting a constant flow of hot water with the CH on?

    If the CH has been on for a while then I get an intitial flow of very hot water (presumbaly water that has been sat in the boiler heating up) but then it goes luke warm or cold. If I get the tap pressure just right then I can get a constant flow of warm water (just about warm enough for a bath/shower) but it's a bit hit and miss.

    At the moment the summer/winter lever is set to winter, the temp is set to max and there are 3 radiators on when I'm trying to get hot water. Would things improve if I only had one radiator on? Alternatively is there a way of manually activating the microswitch so that I can hot water without the CH on?

    The mains water pressure in the house seems quite high. Would things improve if I only opened the stopcock partially?

    Any answers to these questions will be much appreciated!
     
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  3. weareleeds

    weareleeds

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    Switch can be operated manually but as there is no movement of diaphragm blr will only pass water to htg circuit anyway
     
  4. kevindgas

    kevindgas

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    9.24 has a calorifier in it i think, like the 240 /280 probably needs descaling (a regular job for us as we are in hard water area) at worst its a new tank about £200 for a new one.
     
  5. DIYnot Local

    DIYnot Local

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