i have low pressure on up my vaillant ecotec 28 i keep toping up it looks as if it is coming out of the automatic air vent on top of the pump a white powder residue visible help please
central heating
- Thread starter ronaldoboy
- Start date
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H
Heat4input
get a gsrgi to fit a new one 
get a gsrgi to fit a new one
Stopit
needs a new AAV not a very expensive part but id be asking why is it leaking, could be possible dirt in system stuck under the floatSponsored Links
That is a very strong possibility.
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