While you wait for answers, we may have found some information which could help you.
Click here for Ariston Micro Hotariston boiler slow to ignite?
Error light blinking (orange colour) on Ariston e-combi boiler?
Ariston Microgenus 23 MFFI PCB Defect?
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?