i dont know how to higher the pressure on my sime boiler?
Sime thermostat?
Sime swithes itself off/on all the time?
how can i fix my central heating boiler?
Sime Halstead Trio 30/90 - Main Burners are taking too long to fire up?
no hot water?
Sime super 90 hot water problem?
how do I fix my combi boiler, SIME FORMAT 80E?
Sime Format 100c 6yrs old?
sime boiler?
How to fix fault with my Sime 30HE boiler keeps cutting out?
How can I fix my Sime Ecomfort boiler?