While you wait for answers, we may have found some information which could help you.
Click here for Boiler Heating Ignition
Ariston Microgenus 23 MFFI PCB Defect?
boiler keeps going out?
Why does my boiler remain ON - even when switch is moved to OFF?
What is the problem?
I have error code 108 on my Ariston Combi boiler what do I do to fix it?
error code e02 wont work when pressurised?