How to mend Heating Pcb Ariston

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

ariston boiler?

eurocombi?

Ariston Microgenus 23 MFFI PCB Defect?

Arriston combi boiler hot water scalding temp light comes on?

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

boiler stopped working?

how to fix a err 103?

What is the problem?

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

boiler keeps going out?

ariston microgenus 23 chimney led on?

error code e02 wont work when pressurised?

Ariston Error Code E02 now A77?

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

Ariston microgenus 27 mffi problem?

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

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

Boiler fault Ariston Dia 20 mffi ce type c?

gas boiler keeps going to reset?

ariston genus he shows error A06?

ariston e combi evo?

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

ariston boiler slow to ignite?

E 34 on ariston boiler microgenus 24?

Replace PCb on 30he?

Ariston microgenus 23 sounds like a jumbo jet!?

Heating? Ariston micro genus 27 mffi?

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

No display on Ariston e-combi approx3yrs old?