Valliant Ecotec keeps switching off

5 Dec 2010
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United Kingdom
I have a Valliant Ecotec that was fitted in February. I have been running the heating on constant during the cold weather and this evening the boiler has switched itself off. There is no error code but when I press the button on the box that is connected from the mains to the boiler, that has a little green light on it (sorry dont know what this is called) it starts up again. But then after about 5-10 mins it goes off again. Can anyone help?
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It sounds as if the solution lies with the "box" !

Does it have any name or number on it?

When the system was installed what did the engineer tell you the box was for?


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