How can i fix my ariston euro combi boiler?

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

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

What is the problem?

ariston boiler slow to ignite?

gas boiler keeps going to reset?

error code e02 wont work when pressurised?

No display on Ariston e-combi approx3yrs old?

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?

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

boiler keeps going out?

Ariston Microgenus 23 MFFI PCB Defect?