According to the factory the issue was "a manufacturing issue with the manufacturer" apparently the radiators with "the new components" are now with the factory and one is "on the way "to my dealer! That was 2 weeks ago - even with the crazyness of Post-Brexit, I would have thought it shouldn't take this long to swim the Irish sea!!!!
That's what my dealer said.
The welding of the fans would be weakened by the heat given off by the welding of the tube.