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Discuss Worcester Bosch Greenstar Heatslave 18/25 Oil Combi Lockout Issue in the Oil and Solid Fuel Forum area at

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    GAZZECK New Member

    Hi, I'm new to this forum and the question may have been asked previously, but if it has I can't find anything. My problem is that the boiler seems to always "Lockout" during the night and has to be reset in the morning to fire up. Sometimes it fires up briefly then locks out again. When you reset it, it then runs fine for the rest of the day? It has locked out during the day on a few occasions, but resets ok and runs again. It is really infuriating! The boiler has been regularly serviced and recently had a new oill pump motor fitted. It ran for about 2 months without any problems after the new motor was installed but has developed the lockout issue in the last week or two. Any suggestions for my plumber to consider would be much appreciated.
  2. Riley

    Riley Plumber GSR

    You are getting in an oftec guy are you ?? Then he will be trained and will know what to look for don't worry :smile:

    GAZZECK New Member

    Yes of course he is an OFTEC installer. He is coming back Monday I just wanted some additional input in case he wants some assistance!!
  4. ShaunCorbs

    ShaunCorbs S. Mod Trusted Plumber GSR Top Contributor!!

    Problem is they lock out for a few reason and without know when / why it locks out is a shot in the dark
  5. SimonG

    SimonG Trusted Plumber

    You're paying the guy to fix it. If he can't then find someone who can.
  6. Riley

    Riley Plumber GSR

    Yeah was just gonna say there is nothing worse than turning up to a job and someone saying it's xyz

    GAZZECK New Member

    Yes I checked the troubleshooting manual BEFORE I called the engineer so can see it can be a multiple of things. He's changed several things whilst trying to cure this problem and it worked for about 6 weeks without a problem. It's just started to occur again in the last week or so.
  8. Riley

    Riley Plumber GSR

    I would strongly suggest trying a different engineer or get WB out fixed cost repair

    GAZZECK New Member

    He didn't sound very confident that he knew what the problem might be so that's why I thought I'd seek the advice of the so called "experts". Just haven't had much constructive comments up to now!
  10. Riley

    Riley Plumber GSR

    You're not exactly adhering yourself to the people here who are experts in the field, your snippy comments to people who are making constructive comments are going to quickly end with you having no more answers at all
  11. Chalked

    Chalked Plumber GSR

    The reason your not getting the advise you want is for two reasons.

    1. The engineer should know how yo sort this issue. It is a smile part/ fix for any experienced oil engineer.
    2. The way you ask, looks like your doing it yourself. And without experience, a flue gas analyser, and other testing tools. You won't be able to set it to run safely. And for that reason, most on here are reluctant to tell you.
    Don't forget we just are normal folk who give advise girl free. In this case please leave it to your engineer.
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  12. Dotty

    Dotty Guest

    I don't think we can add anything to that so we'll close the thread here.
    • Like Like x 2
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