While you wait for answers, we may have found some information which could help you.
Click here for Ignition Heating Boiler
How can I fix my Sabre 28?
Sabre boiler keeps switching off?
Sabre HE 3 second blinking green then flashing red when on?
How to fix my Sabre 24 passing water to the overflow?
Sabre he will not work with combustion cover on?
Why does my Sabre 25HE pcb fuse keeps blowing?