hi guys
I've got a system thats giving hot water but no central heating.
if i push the 3 port valve lever to manuel it works for a little while then stops again.
is it my 3 port valve
thanks
its a potterton boiler
hot water tank
pump
controler.
if you put the heating on the pump doesn't run
if you put the hot water on the pump runs.
so is it the 3 port valve??
ta muchly
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