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How do I top up the central heating pressure in a Vaillant Combi Boiler?

Hi

We have a Vaillant COMBIcompact VCW GB 240 H boiler. How do I top up the central heating pressure?

Thanks for any help.
Michael Francis, March 2011
Hi

It dfoesn't have a filling loop - is there a valve I should be looking out for?

Michael, March 2011
Look for a filling loop near the boiler, it will look something like the one on the link, top the boiler up to approximately 1 bar whilst the system is cold.

http://www.cheapboilers.com/images/product/filling-loop.jpg

Carefree, March 2011
link Click here to see other fixes for Vaillant 240.