My Worcester 28i boiler won't maintain pressure of 1.5 bar pressure.
I try repressuring it the normal way with key underneath but after hot water or central heating runs it drops towards zero bar when no heating on.
Is there anywhere else to top up the central heating via boiler as it is a combi with no tanks in loft.
Can't see any leaks but would it help to flush and put some treatment in not sure what how do you top up or flush a combi 28i worcester boiler?
Thanks for any help please
Phil
I try repressuring it the normal way with key underneath but after hot water or central heating runs it drops towards zero bar when no heating on.
Is there anywhere else to top up the central heating via boiler as it is a combi with no tanks in loft.
Can't see any leaks but would it help to flush and put some treatment in not sure what how do you top up or flush a combi 28i worcester boiler?
Thanks for any help please
Phil