We may have found other answers which could help you.
Click here for Boiler Heating Fault
I have an Ariston Clas He system with an error code of 1P2?
error code e02 wont work when pressurised?
gas boiler keeps going to reset?
Why does my boiler remain ON - even when switch is moved to OFF?
What is the problem?
No display on Ariston e-combi approx3yrs old?