Hey phytokind sorry this is such a late reply but better late then never right?.Id say that the exaust PC fans gumming up definatly has something to do with plant. There could be alot of resin stuck in those fans, especially if it is a smaller growbox, and is the plant close to the exaust fan?. PC fans will tend to clog deciently easily if used as an exaust. check the fan out and maby try cleaning the blades with alcohol if you can. Lemme know how it goes
~Stonermonkey