Hi all. Have been having trouble with our Truma hws. Igniting, but not staying hot for long. Was informed it MAY be a Flame Rectification Electrode. I ordered one through Caravansplus for about $80 plus postage, only to be emailed to say the Truma parts costs have now doubled in price. I wouldn't mind if we know that that is the problem but if the experts can't even guarantee that's the problem it becomes expensive. So wondering if anyone out there has an old one with that part available. We were also told it could be the Double Spark Electrode????? Anyone have any good ideas?