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How to turn the valve to reduce pressure?

Vaillant combi-boiler pressure is going down below 1.
How to reduce pressure? Which way to turn the valve?
Thank your for your answer.

lulu
October 2009
VaillantHeating, Home Heating SystemsValve Pressure Answer
do u mean u want to stop it from loosing pressure?

sajeed
October 2009

Automatic Answer

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