How to mend Ariston Micro Sstem

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?

Ariston Microgenus 23 MFFI PCB Defect?

ariston microgenus 23 chimney led on?

error code e02 wont work when pressurised?

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

ariston genus he shows error A06?

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

Ariston microgenus 23 sounds like a jumbo jet!?

Replace PCb on 30he?

E 34 on ariston boiler microgenus 24?

ariston e combi evo?

What is the problem?

No display on Ariston e-combi approx3yrs old?

ariston boiler?

Why is the pressure on my Ariston boiler rising to nearly 4 Bar?

gas boiler keeps going to reset?

Ariston Error Code E02 now A77?

eurocombi?

boiler stopped working?

Arriston combi boiler hot water scalding temp light comes on?

Please could anyone tel me why my boiler constantly shows err 501. I reset?

how to fix a err 103?

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

Why is my ariston microgenus 23 combi boiler producing hot water downstairs?

ariston boiler slow to ignite?

boiler keeps going out?

Ariston microgenus 27 mffi problem?

Heating? Ariston micro genus 27 mffi?

Boiler fault Ariston Dia 20 mffi ce type c?