While you wait for answers, we may have found some information which could help you.
Click here for Boiler Heating SystemsNo heating or hot water due to low pressure?
Sabre he will not work with combustion cover on?
Sabre 29he plus combi condensing Boiler?
how can i fix my sabre he 2.5, green light flickers on and off not staying ?
How can I fix my Sabre 28?
were is the reset button on sabre29he?