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Discuss Potterton Statesman system burner.. in the Oil and Solid Fuel Forum area at UKPlumbersForums.co.uk.

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  1. RayPlumb

    RayPlumb Member

    Hi
    I have a problem with a potterton Statesman system boiler. Riello R40 G5. I'm getting lock out after about 15 sec. Motor runs, oil to pump. Although slow bleeding through pump bleeder. No pressure on gauge at all.
    Previous plumber has changed pump solenoid.. Im suspecting pump or broken drive coupling to start with... I ve got downloaded potterton statesman manuals but they do not have any details of boiler setup..Pressure setting, nozzle size, CO2, temps per kw output sizes etc. It says refer to burner manual? I usually use these to get the correct manufactures settings and nozzle. Does any one have these or know where to get them.
    If Im getting about 20volts between white and black at control box is that a knackered motor. Even though it sound fine.?
     
  2. RayPlumb

    RayPlumb Member

    Thanks all for the advice.. Replaced siezed pump and drive coupling...With no help from Baxi and unable to get through to Riello. I took an educated guess. .60/60 /W nozzle preset air buy burner burn with help of combustion view glass. Small adjustment to air to get slight grey on smoke test. Then combustion test to 11.5% Co2.
    Seems to still be running so hope all OK
     
  3. Best

    Best Trusted Plumber

    Glad the advice helped you. :)

    I avoided answering at the time, probably because it read to me it was a diy person at their own boiler due to the pressure comment tbh.
    No pressure at Riello pump, despite oil to it = pump gone, simple as that.

    What Kw is the boiler and what approx heat requirement is the house? A 0.6 nozzle is fairly small and typical of a boiler of about 21kw output.
    The smoke test should normally be zero on that burner.
    The CO2 is about right, although perhaps stay down nearer to 11%.
    Are you using wet testing kit, - or an analyser?
     
    Last edited: Dec 16, 2018
  4. RayPlumb

    RayPlumb Member

    Thanks for the reply. No I'm not diy. Just always found M I to help with set up. The house is an old cottage hard to gauge exact heat loss requirements without doing a load of measuring and inslation checks
    Old Boiler is 21-25kw so presume been ok at that. Also then presume set to mid range of 23kw. Used kane annalyser to fine tune. Retested smoke after and 0 spot. I went back next day to retest ( bit unsure) and same results. It was the burner with the air duct fixed to centre of metal burner box. Pain in ares to get in and out. Previous two plumbers had left unrepairable, screws missing etc.
    My first vue was new boiler but looking at new regulations would mean moving boiler to other side of house., flue through roof, pipework... not something i could arrainge before Christmas..
     
    • Like Like x 1
  5. RayPlumb

    RayPlumb Member

    Exess air was 37% Do you think it might start sooting up or be ok at 11.5% co 2
    Landlord says he'll replace boiler after holidays, but as it is running we all know that will never happen..
     
  6. Best

    Best Trusted Plumber

    Your excess air reading is good. I will pm you
     
  7. MikeJhn

    MikeJhn Active Member

    Why the secret squirrel, post here so we can all see the results.
     
  8. Best

    Best Trusted Plumber

    Best to keep boiler setting methods not on view.
     
  9. MikeJhn

    MikeJhn Active Member

    Why ?
     
  10. Best

    Best Trusted Plumber

    Not supposed to have advice on gas advice on this forum and oil work is not much different.
    The OP is using an analyser, so he only needs specific professional advice.
    I like to help most people, but some knowledge is best kept away from diyers.
     
    • Winner Winner x 1
  11. MikeJhn

    MikeJhn Active Member

    I understand what you are saying, but not all DIY's are muppets that will try to adjust anything and everything because they have a tool in their hand, IMO there can be no harm in giving general advice on adjustment to bring a burner into the correct range according to the Flue Gas Analysis, but then I believe that knowledge is useless if its not shared.
     
  12. DaveyHep

    DaveyHep Member

    " IMO there can be no harm in giving general advice"...Really?
    "knowledge is useless if its not shared"....very odd.
     
    • Agree Agree x 1
  13. MikeJhn

    MikeJhn Active Member

    Going back to the original post, shouldn't there be 50volts between the white and black from the motor to operate the solenoid?
     
  14. Best

    Best Trusted Plumber

    But it is useless information unless you own and can use an analyser.
    And dangerous if you are just messing with boilers without a clue.
     
    • Agree Agree x 1
  15. MikeJhn

    MikeJhn Active Member

    Thank heaven that people in education don't share your view.
     
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