how do i know the time is right on my boiler?
My sime super 90 has developed a dely in igniting?
i dont know how to higher the pressure on my sime boiler?
Sime Halstead 30/90 TRIO - something is preventing the burners from firing ?
Sime Halstead Trio 30/90 - Main Burners are taking too long to fire up?
How to fix fault with my Sime 30HE boiler keeps cutting out?