how do i know the time is right on my boiler?
heating system?
Sime swithes itself off/on all the time?
what to buy?
i dont know how to higher the pressure on my sime boiler?
sime boiler super format 100 keeps cutting out/please help?
How to fix fault with my Sime 30HE boiler keeps cutting out?
boiler?
Sime super 90 hot water problem?
Sime boiler?
How to increase water pressure in SIME format 34 boiler?
got heating but no hot water ?