Yes, this is the most compelling of all the stories we have heard on why so many OBC errors are occurring.
But I am not convinced it is true. I will wait another year to see what happens with the newer versions, before accepting this problem is over.
Yes, this problem first occurred in Norway and Quebec.
But, later it is also occurring in California and Jeju. Two places with less climatic extremes.
Yes, the first response by Kia to fix the OBC issue was to reduce max current from 30A to 27A.
Consistent with the problem being caused by too much heat, temperature differential. Lower current = lower heat.
But, I am not seeing any reduction in the frequency of this problem after that first 'fix'.
If the problem was really about cracks in the casing, then I think they would have improved the casing pretty quickly.
I think the mechanical engineering problems are much better understood by the big car companies,
than the electrical engineering problems. A mechanical fix would also be a much cheaper option.
There are also comments that the replacement OBC's use a refurbished old OBC case.
It would be really stupid to do this if the original problem was the case, not the electronics inside.
Although that would explain the overly large number of second and third failures.
I am also not convinced that the problem has been 'fixed'. We don't have evidence yet that V14s are failing, but there are a lot of MY2017's reports coming in.
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