Q: AC running but not blowing.

Good evening, I'm experiencing an issue with the HVAC system in my pickup (dual zone climate control, no rear). I turned my truck on the other day, and while the compressor was kicking on and off, as it should be, no air was blowing out of the vents, regardless of fan speed setting. I removed and reinstalled the HVAC battery fuse, as well as the HVAC blower fuse. After that, I played with the ac controls for a little while until it started blowing air again; but, while it was blowing cold on the driver's side, it was blowing full hot on the passenger's side. After looking online, I saw to set one side as cold as possible and the other as hot as possible for a couple of minutes, then to shut the ac off for a minute or so. Then, it said to do the opposite and shut it off. After that, it said to run the ac at a normal temp. This actually did the trick, and the ac started blowing in line with set temps. It did it again today, and that trick worked again. Any ideas for a permanent fix?

My car has 72000 miles.
My car has an automatic transmission.