How to increase water pressure in SIME format 34 boiler?
My sime super 90 has developed a dely in igniting?
sime 100e boiler?
sime boiler super format 100 keeps cutting out/please help?
How to fix fault with my Sime 30HE boiler keeps cutting out?
Sime thermostat?
My sime super 90 has developed a delay in igniting?
boiler?
how do I fix my combi boiler, SIME FORMAT 80E?