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  1. Y

    Vaillant Boiler (Eco Tech Plus 831) - Water Presure

    What can I say....MANY THANKS for your patience. At last I got it and all is well.
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    Vaillant Boiler (Eco Tech Plus 831) - Water Presure

    Will repeat my earlier comments since I think they may have gone astray. I found the button you are referring to. It is marked "i" ("i" for Information). When I pushed it the display showed temperature and pressure (I think!). In my case the pressure was 5.31. I am assuming that this means just...
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    Vaillant Boiler (Eco Tech Plus 831) - Water Presure

    Thanks to all of you for trying to assist. However, I am a real beginner when it comes to boilers. Hence my following question....where is button "-" which you are referring to? immediately under the boiler display there are only two buttons one has an exed out flame sign and the other an...
  4. Y

    Vaillant Boiler (Eco Tech Plus 831) - Water Presure

    How can I find the water pressure of my boiler. It stoped working and I got an F.22 message (water pressure 0.4 bars only). I turned on the tow gray keys under the boiler for a few seconds then off again and my boiler started to work. However, how can I find out what the current water pressure...
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