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Buderus Logano G115 Oil Boiler issue

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Lutz
Lutz Member Posts: 4
in Oil Heating
Hello, I recently purchased a new Buderus Logano G115 Oil Boiler and have a concern. It starts and runs for 2 minutes, then it shuts off, and then 10 minutes later it kicks in again and only runs for another 2 minutes. This is how it operates throughout an hour. This does not seem to be correct?

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  • Jamie Hall
    Jamie Hall Member Posts: 23,345
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    Not really -- but it may not be the boiler. it may be the thermostat. That is the behaviour I would expect from a thermostat set up for forced air heat.
    Br. Jamie, osb
    Building superintendent/caretaker, 7200 sq. ft. historic house museum with dependencies in New England
    GrallertSuperTech
  • Lutz
    Lutz Member Posts: 4
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    The technician that installed the heater also installed a new thermostat, so my assumption is that they would have installed the correct type of thermostat.
  • Big Ed_4
    Big Ed_4 Member Posts: 2,785
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    How does it heat the home ?

    There was an error rendering this rich post.

  • Lutz
    Lutz Member Posts: 4
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    Good, the house is warm.
  • STEVEusaPA
    STEVEusaPA Member Posts: 6,505
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    Sounds like it’s bouncing off high limit.

    There was an error rendering this rich post.

    HVACNUTDJD775SuperTech
  • HVACNUT
    HVACNUT Member Posts: 5,843
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    G115-?
    What's the operating control (aquastat) and it's settings?

    DJD775
  • Lutz
    Lutz Member Posts: 4
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    Thank you all for the comments.
    The boiler model is G115 WS/4.
    We're still learning it and not sure how to get the settings.
  • DJD775
    DJD775 Member Posts: 252
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    Did the installer perform a heat loss calculation prior to the install? Unless you have a huge house, lots of windows, lack of insulation, or live in an extremely cold environment the boiler is probably oversized. Depending on the controls you have you could try to increase the high differential to increase the run time.

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