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