RichardS
N/A
Well, now that he has a 99% diagnosis, the problem shouldn't occur again. Presumably he'd have found that out if he' gone back to the supplier as I suggested.
Although unless the item is still under guarantee and you are demanding either a new one or your money back then I would steer well clear of suppliers, marine engineers and garage mechanics as 99% of them are useless, to varying degrees.
Richard