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Discuss Vaillant ecoTEC plus 837 R1 with persisting F75 fault in the Central Heating Forum area at UKPlumbersForums.co.uk.

  1. Harvest Fields

    Harvest Fields Trusted Plumber GSR Top Contributor!!

    Smells like DIY to me.
     
  2. ShaunCorbs

    ShaunCorbs S. Mod Trusted Plumber GSR Top Contributor!!

    You are gas safe or your getting one ?
     
  3. cmel1975

    cmel1975 New Member

    has it got an internal condensate pipe ? which could be partially blocked at connection to waste pipe
     
  4. yossibac

    yossibac New Member

    We have found the solution. For those of you who tried to help, if you would like to know please pm me. And to the others that didn't, no, we are not DIY
     
  5. Last Plumber

    Last Plumber Plumber GSR

    Do you have an external pump as well as the one in the Boiler?
     
  6. Harvest Fields

    Harvest Fields Trusted Plumber GSR Top Contributor!!

    I’m good I know what the problem of with that Code. But thanks anyway.
     
  7. yossibac

    yossibac New Member

    No, there is no external pump


    We all know what F75 is, what we didn't know is why by taking all the appropriate actions it was still there.
     
    • Funny Funny x 1
  8. Matchless.plumb

    Matchless.plumb Trusted Plumber GSR

    Why would someone as a professional gas safe engineer make the customer poor by changing almost the whole boiler? Why not calling manufacturer and get some information or perhaps get it solved via warranty. It doesn’t seem very good to change all those parts . very unprofessional
     
  9. rpm

    rpm Trusted Plumber Top Contributor!!

    Apparently changing bits here and there over 5yrs cured it only for it to return after a few months is the answer.
     
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