i dont know how to higher the pressure on my sime boiler?
How can I fix my Sime Ecomfort boiler?
How to fix fault with my Sime 30HE boiler keeps cutting out?
Sime Halstead Trio 30/90 - Main Burners are taking too long to fire up?
manual for sime super 10 year old combi boiler?
My sime super 90 has developed a delay in igniting?
how can i fix my sime boiler 80c ?
My sime super 90 has developed a dely in igniting?
got heating but no hot water ?
Sime boiler?
how can i fix my sime 80c combi ?
Sime Halstead 30/90 TRIO - something is preventing the burners from firing ?