Heya! Ok, this is a new error for me to look at, sorry about the lack of feedback. I started a topic: Error codes (And what we can do with them)
Your problem is not on that list. I’m just a guy, no connections to the super-duper folks with the real answers, but I like to think I can fix sh*t 
Most errors are tossed off by the MBoard, and this one looks like a signal wire is either loose, missing, or getting hijacked. Now the sw/fw can’t report the status of the fan.
Can you tell me what you’ve done? Or what you are not comfortable doing so I can maybe walk you through some steps?
Hope I can help,
Zerq