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Mend Vaillant ecoTEC plus VU 22 Home Heating Systems

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Mend Vaillant ecoTEC plus VU 22

vallient boiler ?

when it says f.22

mandy purvis
January 2009
VaillantVaillant ecoTEC plus VU 22Heating, Home Heating Systems
dependent on the model you have its normally the pressure is to low. you will need to up the pressure to between 1-1.5 bar. again dependent on the model the filling loop may be external or internal of the boiler.

andy
January 2009
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