Sime swithes itself off/on all the time?
i dont know how to higher the pressure on my sime boiler?
Sime Format 100c 6yrs old?
how do I fix my combi boiler, SIME FORMAT 80E?
what to buy?
how do i know the time is right on my boiler?
sime friendly format 80e?
got heating but no hot water ?
How to increase water pressure in SIME format 34 boiler?
How can I fix my Sime Ecomfort boiler?
How to fix fault with my Sime 30HE boiler keeps cutting out?
Overflow leak?