worcester greenstar 12/18 lockout light on but firing

Discussion in 'Plumbers' Talk' started by jonathanc, Sep 9, 2018.

  1. jonathanc

    jonathanc Active Member

    so the greestar heatslave oil boiler has a really weird fault, the lockout light comes on whenever the burner fires up, but it all runs fine. have tried resetting the lockout but it does nothing. looking at the wiring schematic, it seems the lockout light is fed from the burner so I'm suspecting some issue there rather than the control box but i've not investigated it at all

    any ideas? - i know in reality the lockout light should mean it doesn't fire so am confused
  2. Vin

    Vin Active Member

    That is weird, I have just looked at the circuit diagram of the control module that is used in my Greenstar boiler and there is no way the boiler should fire in the event of a lockout.

    Looks to me that your controller is faulty, it will probably look like the one in the picture I've added.
  3. heatyman

    heatyman Well-Known Member

    What burner does your boiler have?

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