dakrat

I get these foul odor coming from the fan on my 09. Took it to the dealer a few months back for the same issue and the tech said the drain clogged and that it is not draining properly. according to him , he unclogged it and sprayed some deodorizer in the vents. not sure what drain he is talking about but I am guessing the condenser? Im taking it in again next week because I can't stand it. cant smell it when the AC is on, only stinky fan. any clue?