the same issue happened on my F30, ac compressor clutch was not engaging. I spent $90 asking a mechanic to check for me. not ac refrigerant level issue. He uses ISTA to read the code 80436e. He checked the volt on the compressor, it seems like some wire is shorted/disconnected, I was told to replace ac compressor in the end.
But luckily, hot summer is gone, and winter is coming lol.