We may have found other answers which could help you.
Click here for Sabre 28 BoilerSabre 29he plus combi condensing Boiler?
were is the reset button on sabre29he?
How to fix my Sabre 24 passing water to the overflow?
how can i fix my sabre he 2.5, green light flickers on and off not staying ?
sabre 28?
Sabre HE 3 second blinking green then flashing red when on?