i dont know how to higher the pressure on my sime boiler?
how do i know the time is right on my boiler?
sime boiler super format 100 keeps cutting out/please help?
Sime Format 100c 6yrs old?
how do I fix my combi boiler, SIME FORMAT 80E?
Sime swithes itself off/on all the time?
How to fix fault with my Sime 30HE boiler keeps cutting out?
how can i fix my central heating boiler?
sime 90 gas boiler ?