Vaillant ecomax coming on for no reason

Discussion in 'Plumbing and Central Heating' started by purplegerbil, 5 Oct 2015.

  1. purplegerbil

    purplegerbil

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    Just want to check whether this is normal. I have a vaillant ecomax combi boiler and over the weekend my wife noticed it came on when she was outside. The heating is not on yet and no taps were in use.
    I have got home today and noticed it as well, it came on for a minute or so and showed 57 degrees on the display, no taps on and heating off.
     
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  3. cross thread

    cross thread

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    water in pre heat mode,can be turned off
     
  4. picasso

    picasso

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    If there is a small "c" on the display you have warmstart activated.
     
  5. TCCHeating

    TCCHeating

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    Its normal. The boiler has a preheat funcion, it keeps the hot water heat exchanger hot so hot water doesn't take quite as long to arrive at the taps. In my opinion it is a waste of gas and I would turn it off. Can't remember exactly how to turn it off on these boilers but it will tell you in the manual
     
  6. purplegerbil

    purplegerbil

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    Thanks for the replies. I will try to turn it off.
     
  7. picasso

    picasso

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    Turn the hot water dial all the way off and then back to where you want it, this will turn off the preheat but if you turn it to maximum it will turn it back on again.
     
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  8. purplegerbil

    purplegerbil

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    Yep, thats stopped it thanks.
     
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