Tony - I'm pretty sure the PCB has gone by the way it's behaving - i.e. the boiler's fine in terms of producing hot water but cuts out for heating the rads. I got my pal who fits boilers for a living to have a look and he confirmed as much. He's pretty good and I trust him.
Hi all
I have a Sarigas Sintex combiboiler. If I'd known it was Bulgarian I would probably have resisted the "professional" who recommended it and installed it. Anyway the printed circuit board has gone and I haven't got a clue how to get a replacement. if there's anyone out there who's had the...