While you wait for answers, we may have found some information which could help you.
Click here for Ariston Combi Mffi 23No display on Ariston e-combi approx3yrs old?
Error light blinking (orange colour) on Ariston e-combi boiler?
gas boiler keeps going to reset?
boiler keeps going out?
I have an Ariston Clas He system with an error code of 1P2?
I have an Ariston Genus boiler. Fault showing 30 40 50, I can't find manual?