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Worcester greenstar highflow 440DCi

Discussion in 'Plumbing and Central Heating' started by bethellen, 5 Jan 2012.

  1. bethellen

    bethellen

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    I have this boiler it's the 2nd one I've had and I've never had any problems although this seems to be a bit more complicated. It has been fitted for about 3 yrs and now the heating has gone off and I can't get it back on again. Hot water is working fine. I tried switching it off at the wall and it seemed to start up again the numbers flashing until it reached 59 now numbers seem to be going down again. The switch thing on the wall is set to constant and the dials turned up I didn't touch anything before it went off. Please help :)
     
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  3. 45yearsagasman

    45yearsagasman

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    I would stsrt by checking the diverter valve for correct operation. They have a motor to drive the valve. Not exactly sure of voltages involved and if you are not sure get a repair call booked in.
    Immediately after a ch demand the fan and pump should start and the diverter valve should move to the ch position. Can't really see this as a diy fix.
     
  4. bethellen

    bethellen

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    Thanks i have no idea how to check the diverter valve for correct operation. or what it is. I was hoping it was something simple to do with the dials on the wall as it was working okay yesterday. Calling someone out isn't an option I rang 2 plumbers this morning who said that these were specialist boilers and they wouldn't touch them. And the 3rd said it would be £50 just to look at it. I'm on my own and was finished from work in November. I have £28.98 until next Tuesday. Then I'll have the £50 but no more so dunno if I can't fix it, it'll have to stay broke.
    but thanks anyway.

    Read more: http://www.diynot.com/forums/plumbing/worcester-greenstar-highflow-440dci.306317/#ixzz1iZn7wZVf
     
  5. bethellen

    bethellen

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    just noticed that the pressure dial is on zero does that mean there isn't enough pressure to send it around the radiators?

    :)
     
  6. swbjackson

    swbjackson

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    Sort of yes. You need to top the pressure back up.
     
  7. simond

    simond

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    That'll be a cheap repair, just as well by the sound of it. There is a filling loop connection in the lower left to middle part of the boiler. The flexi pipe will need to be inserted (see manual) first, as you have to remove it to get the door shut on a 440CDi.
     
  8. DIYnot Local

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