While you wait for answers, we may have found some information which could help you.
Click here for Electrical Potterton BoilerGas boiler fails to fire and safety cut out has switched in?
POTTERTON LYNX 2 BOILER?
How do I get pilot light on Potterton Profile back on?
Where can I get the Installation Manual for Potterton Boiler, Prima F model?
5 year old suprima, boiler tripping out?
potterton boiler fires up then gos off with loud banging from the pipes?