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  1. J

    Worcester 24CDiOF burner lockout

    Thanks Guys, I was leaning towards it being the gas valve. (I am an engineer, but different field of experience) I'll look up someone to come and have a look at it. Cheers all. JH
  2. J

    Worcester 24CDiOF burner lockout

    If it fails, it sparks repeatedly for several seconds, but no flame appears. I can't tell if theres any gas coming out of the burner, but I presume there isn't. The electrodes for the igniter are in good condition, and well positioned, so if gas was escaping, I would expect it to ignite. If I...
  3. J

    Worcester 24CDiOF burner lockout

    I meant it fails for both, not one or other. I guess thats a daft thing to say in professional eyes, but I thought it worth mentioning! Is there any visual, or other way of checking the gas valve without removing it? I don't know that much about boilers (obviously), but I know to leave gas...
  4. J

    Worcester 24CDiOF burner lockout

    Sorry, I missed out part of the fault description. It only fails when trying to ignite with a demand for either DHW or CH. If it manages ignition, it appears to run normally for the duration of the demand, and never locks out after its been running. More that I should have included at the...
  5. J

    Worcester 24CDiOF burner lockout

    Hi all, I'm getting a reasonably intermittent burner lockout on the boiler (meaning every third or 4th ignition fails). I can see a strong spark across the electrodes, which are in good condition and position. Following the fault diagnosis, the resistance across the brown and violet wires to...
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