Re: ariston margherita 2000
Nothing to see taking the front off. 8 flashes is one of the most difficult to trace/rectify. It is supposed to indicate a fault on the control module related to the heater but long and very bitter experience often shows that it can be one of several components, or a combination of them, loose contacts etc, etc.
One reason why lots of people in the trade run a mile when they hear the dreaded words “eight flashes”
Due to the high cost of the control module I would advise seeking expert help. Try the link in my sig and please be sure to remove the plug if you intend to proceed further.
Jim.