We may have found other answers which could help you.
Click here for Central Heating Hot Water Programmer
How do I stop my radiators staying cold at the bottom?
My oil-fired Rayburn has gone out, recently serviced?
Rayburn Driven Central Heating Problem - Upstairs Cold?
how can i get radiators hotter?
Pressure problems on rsf 820/20?
how do i bleed a rayburn 480k system?