I have done a bit of google research and this code probably means "Not Cooling" Due to a power interruption or sometimes if you do the initial cool down from 12v (instead of gas or AC). There are a couple of other causes but often all the unit needs is a reset. I found some details and instructions here but they don't specify an exact model. There were other details here but they refer to pages that are no longer available..

This should put you on the right track. Just do some more googleing if these details aren't specific enough.

This unit needs to be reset by a mobile tech or a dealer