While you wait for answers, we may have found some information which could help you.
Click here for Ariston Micro WaterI have an Ariston Genus boiler. Fault showing 30 40 50, I can't find manual?
Error light blinking (orange colour) on Ariston e-combi boiler?
boiler keeps going out?
I have an Ariston Clas He system with an error code of 1P2?
No display on Ariston e-combi approx3yrs old?
Why does my boiler remain ON - even when switch is moved to OFF?