While you wait for answers, we may have found some information which could help you.
Click here for Ariston Micro Genus HeAriston Microgenus 23 MFFI PCB Defect?
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?
What is the problem?
I have an Ariston Clas He system with an error code of 1P2?
error code e02 wont work when pressurised?