Hi and
to the forum.
If the controller is still under warranty, you will need to contact your supplier, but if the warranty has expired, it might be worth asking GM China if they are able to offer a repair service
(sales@goldenmotor.com).
Posting pictures might enable someone with the same controller to identify the failed component, but I suspect there may be further damage that may have caused
(or have been damaged by) the visible failure.
Alan
