While you wait for answers, we may have found some information which could help you.
Click here for Combi Fine Hot Waterariston boiler slow to ignite?
Why does my boiler remain ON - even when switch is moved to OFF?
boiler keeps going out?
I have an Ariston Clas He system with an error code of 1P2?
What is the problem?
I have an Ariston Genus boiler. Fault showing 30 40 50, I can't find manual?