User manual for an Ariston Eurocombi Boiler?

I have error code 108 on my Ariston Combi boiler what do I do to fix it?

Why does my boiler remain ON - even when switch is moved to OFF?

gas boiler keeps going to reset?

boiler keeps going out?

error code e02 wont work when pressurised?

Error light blinking (orange colour) on Ariston e-combi boiler?

I have an Ariston Genus boiler. Fault showing 30 40 50, I can't find manual?

ariston boiler slow to ignite?

No display on Ariston e-combi approx3yrs old?

I have an Ariston Clas He system with an error code of 1P2?

Ariston Microgenus 23 MFFI PCB Defect?

What is the problem?