Heating timer?
how can i fix my central heating boiler?
My sime super 90 has developed a dely in igniting?
i dont know how to higher the pressure on my sime boiler?
got heating but no hot water ?
how do I fix my combi boiler, SIME FORMAT 80E?
sime boiler super format 100 keeps cutting out/please help?
how do i know the time is right on my boiler?
Sime boiler?
Overflow leak?
how can i fix my sime 80c combi ?
How to fix fault with my Sime 30HE boiler keeps cutting out?