i dont know how to higher the pressure on my sime boiler?
Sime super 90 hot water problem?
what to buy?
manual for sime super 10 year old combi boiler?
how can i fix my central heating boiler?
how do I fix my combi boiler, SIME FORMAT 80E?
how can i fix a sime 80 friendly combi boiler?
Sime Format 100c 6yrs old?
cant fill up sime boiler ?
How to increase water pressure in SIME format 34 boiler?
Sime swithes itself off/on all the time?
How to fix fault with my Sime 30HE boiler keeps cutting out?