Problem repressurising Boiler

12 Oct 2003
Reaction score
United Kingdom
I need to repressurise our Ariston EuroCombi boiler, but am having probelms finding the valve that I should open to allow water to flow through the filling loop. Can anyone explain what this looks like and how to open it.
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There are lots of recent posts on this, try a search for "filling loop" and for "expansion vessel". Unless you are familiar with the needs of these devices I suggest you have professional help as there are some important checks to make, and if you need to repressurise the system you need to know why it lost pressure.

Once you have read the other posts you may be able to ask more detailed questions.

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