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Discuss Vaillant 430 Open Vented Boiler - Not firing up in the Plumbing Forum area at UKPlumbersForums.co.uk.

  1. topman870

    topman870 New Member

    Hi Chaps,

    We've just had a new boiler/system installed by a plumber and it was wired separately by a qualified electrician, the electrician wired this as per the Vaillant manual.

    The system is fully filled and vented but when trying to call for heat or water via the stats nothing seems to happen. Live monitor shows S30 but not faults.

    Any ideas what could be the issue? the plumber has been called to came and check it out again but he is currently on holiday and wont be back until next weekend, the customer needs the system working soon as.

    Any ideas what could be the issue?
     
  2. townfanjon

    townfanjon Trusted Plumber GSR Top Contributor!!

    Sounds more like you need the sparks back more than the plumber
     
  3. ShaunCorbs

    ShaunCorbs S. Mod Trusted Plumber GSR Top Contributor!!

    Get the spark to check his wiring

    S or y plan ?
     
  4. Last Plumber

    Last Plumber Plumber GSR Top Contributor!!

    It sounds like something to do with a link. Get the spark back.
     
  5. topman870

    topman870 New Member

    Its an S plan system.

    When calling for heat or water the pump kicks in but that's as far as it goes.

    Will get the sparky to come back tomorrow. Any suggestions let me know so I get him to try..

    Thanks!!!
     
  6. ShaunCorbs

    ShaunCorbs S. Mod Trusted Plumber GSR Top Contributor!!

    yea quite simple hes wired it wrong pump on boiler should fire also pump might need wiring to the boiler
     
  7. topman870

    topman870 New Member

    Cool well get him to check them connections out tomorrow.

    Thanks!
     
  8. heliotrope

    heliotrope Plumber GSR

    We've just had a new boiler/system installed by a plumber...!

    the customer needs the system working soon as..!

    The plumber has shoved off and left boiler untested and un commissioned?

    The electrician has shoved off and left boiler untested?

    This has to be a diy installation gone wrong or a mate of yours
    has fitted it and got out of his depth and now you need help.
     
    • Agree Agree x 1
    • Funny Funny x 1
  9. topman870

    topman870 New Member

    All working now guys, wiring was double check and it was all correct, just needed to reset it by pressing the flame button...

    Strange.. but it fires up now.

    Thanks!
     
  10. kozak1968

    kozak1968 Plumber GSR

    Is the benchmark filled in and boiler registered for warranty and Gas safe?
     
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