We may have found other answers which could help you.
Click here for Hot Water Not Central Heating
Why does my Sabre 25HE pcb fuse keeps blowing?
Sabre 29he plus combi condensing Boiler?
Sabre HE 3 second blinking green then flashing red when on?
How to fix my Sabre 24 passing water to the overflow?
were is the reset button on sabre29he?
how to fix sabre he plus?