vaillant 242 hot water / flow

Joined
26 Nov 2008
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Location
Cleveland
Country
United Kingdom
boiler is coming up to 12 years old - done me well,
i replaced the diverter recently as the old one had got stuck so i had no hot water.
also recently i've replumbed the house from top to bottom.

when the taps are fully open the water isnt as hot as i'd like - i've checked flow and its 10 l/m so thats ok.

Only thing i can think of is i haven't adjusted the screw at the bottom of the diverter - i believe this is to control flow of the cold water ? - if so does anyone know the procedure for setting this - im guessing screw it right up then backoff a few turns.

Either that or is it the secondary heat exchanger ? - altho i'm not in an area that scales up very much at all.

cheers
 

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