While you wait for answers, we may have found some information which could help you.
Success
Message
Ariston Microgenus 23 MFFI PCB Defect?
I have an Ariston Clas He system with an error code of 1P2?
What is the problem?
error code e02 wont work when pressurised?
ariston boiler slow to ignite?
boiler keeps going out?
I have error code 108 on my Ariston Combi boiler what do I do to fix it?
Error light blinking (orange colour) on Ariston e-combi boiler?
gas boiler keeps going to reset?
No display on Ariston e-combi approx3yrs old?
I have an Ariston Genus boiler. Fault showing 30 40 50, I can't find manual?
Why does my boiler remain ON - even when switch is moved to OFF?