i dont know how to higher the pressure on my sime boiler?
manual for sime super 10 year old combi boiler?
sime super 90 plus hot water issue?
How to increase water pressure in SIME format 34 boiler?
Sime swithes itself off/on all the time?
no hot water?
sime boiler super format 100 keeps cutting out/please help?
what to buy?
how do i know the time is right on my boiler?