how do I fix my combi boiler, SIME FORMAT 80E?
what to buy?
Sime swithes itself off/on all the time?
sime boiler super format 100 keeps cutting out/please help?
How can I fix my Sime Ecomfort boiler?
no hot water?
How to increase water pressure in SIME format 34 boiler?
i dont know how to higher the pressure on my sime boiler?
got heating but no hot water ?
Sime Halstead Trio 30/90 - Main Burners are taking too long to fire up?
how can i fix a sime 80 friendly combi boiler?
Heating timer?