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home Fix label Heating label_important Home Heating Systems category Vokera

What is required to fix this?

My vokera combi boiler pressure is continuing to rise even when the filling loop is removed. I cannot use the central heating as the pressure rises quickly after 15mins. What is wrong?
Sheena McGartland, October 2010
home Fix label Heating label_important Home Heating Systems category Vokeradone
If it's rising when the heating is on, the expansion vessel needs recharging/replacing.

If it's rising anyway with everything off, the domestic heat exchanger must be 'mixing' and would need renewing.

Carefree, October 2010
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