We may have found other answers which could help you.
Click here for Combi Boiler Central Heating Hot Water
I have an Ariston Clas He system with an error code of 1P2?
error code e02 wont work when pressurised?
Ariston Microgenus 23 MFFI PCB Defect?
ariston boiler slow to ignite?
Error light blinking (orange colour) on Ariston e-combi boiler?
Why does my boiler remain ON - even when switch is moved to OFF?