Hello Ann
Error 11 is "Offset error armature/field current d/c or stator current a/c.
Check main current wire
C16 refers to the main traction power board MP1510C/AS2405F/
So you have a main power fault on the traction side, drive motor or main power component or cables, etc.
Hope that is of some help.
Seen a damp/wet drive motor cause this problem in the past.
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