We may have found other answers which could help you.
Click here for Bleed System AgoRayburn Driven Central Heating Problem - Upstairs Cold?
Has the Pulsacoil system have to be drained to replace the thermosistors?
i have fitted a second hand rayburn and can't get radiators to work?
Pressure problems on rsf 820/20?
My oil-fired Rayburn has gone out, recently serviced?
Rayburn boiler, erratic function?