We may have found other answers which could help you.
Click here for PCB Heating FuseWhy does my boiler remain ON - even when switch is moved to OFF?
gas boiler keeps going to reset?
ariston boiler slow to ignite?
Ariston Microgenus 23 MFFI PCB Defect?
boiler keeps going out?
I have error code 108 on my Ariston Combi boiler what do I do to fix it?