Have a Ferroli Moderna 102 installed. For whatever reason, the boiler has started to work erratically - fine for varying periods of time. It will perform normally for a couple of days and then go "bonkers", being on for between 1 and 8 hours then switching off. Attempts to restart via the "reset button" fires the boiler up for about 5 seconds only (repeated attempts produce the same result) and the "closed down " state can last several hours.
Any suggestions?
Any suggestions?
