While you wait for answers, we may have found some information which could help you.
Click here for Error Ariston BoilerI have an Ariston Clas He system with an error code of 1P2?
ariston boiler slow to ignite?
Ariston Microgenus 23 MFFI PCB Defect?
Why does my boiler remain ON - even when switch is moved to OFF?
I have an Ariston Genus boiler. Fault showing 30 40 50, I can't find manual?
error code e02 wont work when pressurised?