Question about Heating & Cooling
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Posted on Jan 02, 2017
I have a similar problem with this boiler. When CH on, boiler overpressurises, (check relief valve outlet) You will then lose water from the CH loop and will have to repressurise when the CH loop cools. The problem is most likely caused by a loss of air from the expansion tank, which will need re-charged. This is not a big job as it has a standard tyre type valve connection but needs an accurate pressure gauge. Probably best left for plumber.
Posted on Apr 30, 2009
SOURCE: vokera combi boiler
there is a zoneing valve thats suppose to be in the line to keep this from happening, might even have a check valve either way which ever one you have is bad and should be changed with a new one
Posted on Jun 06, 2009
your fan may need attension fan runs after boiler shuts down is normal on some Vokera,s too clear fumes out the flue 2mins approx
Posted on Oct 11, 2009
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