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Have a ecotec 824 plus boiler the bar goes upto 2.7 and stays round 1.5 when not operating,what is causing this?

When it first started happening it only occurred when central heating on but now happens when hot water running. Also water dripping from outside overflow pipe.

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Sounds to me like the expansion vessel is not working correctly. When the boiler is on the water gets hot and expands into the expansion vessel but if the vessel is not working the pressure will rise and will eventually escape through the pressure relief valve.

Posted on Feb 18, 2012

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SOURCE: lost my user manual for the vaillant boiler ecotec plus 824 R1

try to enter here all informations and you can find the manual: http://instructions-manuals.com/search.php?cmarque=VALLIANT%20&modele=ECOTEC%20PLUS%20824

Posted on Oct 27, 2009

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Lost my user manual for the vaillant boiler ecotec plus 824 R1


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