Hi all, I know likely several people have the 12v mini splits that are designed for trucks. I never got a manual delivered with mine and recently it has started displaying “E3”. I cannot find a manual ANYWHERE online. The system will work completely fine one day and then refuse to cool the next day and just display an E3 error. Anyone have a copy of their Chinese 12v mini split system with a list of what the error codes. TIA #lifestyle