Viessmann 100 DHW fault and component location in the boiler

Joined
4 Sep 2009
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Location
Yorkshire
Country
United Kingdom
Hello, i have been reading through the info on this site re issues with this boiler, the one my friend has is six years old and will run the central heating but will not deliver any hot water to the house at all.

i have read a post on this problem that points to a diverter valve that might be fitted in line in a pipe? and a flow sensor that could be at fault depending on how the boiler tries to engage when hot water is requested from it.

can anyone please point me to the position of these components in the boiler casing

i have located this link to a parts diagram

cheers

Stu
 
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