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Discuss Valiant ecotec plus 831 high/low fire settings in the Gas Safe Register Forum - Public Forum area at UKPlumbersForums.co.uk.

  1. Inverness

    Inverness Plumber GSR

    hi guys, came across my first valiant combi. I couldn't figure out how to get high fire and low fire to check my ratios and co2.
    There wasn't a manual.
    Any advice?
    I'm used to Worcester boilers.
     
  2. scott_d

    scott_d Plumber GSR Top Contributor!!

    Use the menu to enter installer level
    Code 17
    Max and Min
    Easy once you have done it once
     
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  3. Chalked

    Chalked Plumber GSR

    Installer level
    Code 17
    Press + twice and your in “p”codes.
    P zero is high p 01 is low.
     
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  4. Inverness

    Inverness Plumber GSR

    Thanks Scott. Is it me but there's too much electronics digital buttons. I've looked at the manual and I still can't find how to set it to high n low fire?
    thanks
     
  5. Inverness

    Inverness Plumber GSR

    I was close I managed to get to the installers level. And it displayed from 00 -80 odd. I stay this where I select 17 then I'm in the p codes?
     
  6. Chalked

    Chalked Plumber GSR

    Yes. It will take you to d codes first. Press + to get to p.
     
  7. sammathias

    sammathias Plumber GSR

    P1 is max rate and P2 is mine rate.
     
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  8. sammathias

    sammathias Plumber GSR

    P.0 is just for purging the boiler
     
    • Agree Agree x 1
  9. AMGasServices

    AMGasServices GSR

    ● Press and hold the top 2 buttons above the + and - for 5 seconds
    ● On release scroll down using the + and - to installer level then press select
    ● 00 should appear, using the + button go to code 17 then press ok
    ● Scroll down using the + and - to test program (p) and then press select
    ● Scroll down to check programs and press select
    ● Using + and - scroll to p.01 (max) co2 reading 9.2 +/- 1.0
    ● Press select to come out of max and using + and - scroll to P.02 (min) select
    ● Co2 reading of 9.2 +/- 1.0
    ● When finished scroll back to user display
    Please note that the minimum setting cannot be adjusted as this is auto adjusted dependant on the maximum being set correctly.
    To set the maximum, locate the small black cap at the top of the gas valve and gently remove it to reveal a brass throttle.

    Clockwise decreases the co2 and anti clockwise increases the co2.
     
    • Like Like x 1
  10. Chalked

    Chalked Plumber GSR

    Sorry
    I can test a vaillant with my eyes shut. But should describe it to someone else, before I’ve had a drink!
     
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  11. Harvest Fields

    Harvest Fields Trusted Plumber GSR Top Contributor!!

    We have all been there.:D:D:confused::confused:
     
  12. Inverness

    Inverness Plumber GSR

    Thank for your detailed information, appreciate your time. Thanks
     
  13. AMGasServices

    AMGasServices GSR

    Your welcome glad I could help. We’re all here to help each other and develop our knowledge and understanding.
     
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