2006 Kia Spectra A/C airflow stops

You can hear the motor running. Just before it stops blowing air, there will be tiny ice flakes blown out of the ducts. If you turn the ac off for 20 30 minutes then turn it back on, it works for a an hour or two. It is as if something is freezing and not letting air through. This is under warranty and at the dealer, however thy refuse too do anything because thy can not duplicate the situation.

Hi, Ive had the same issue with my spectra, It started off doing the same thing, it would freeze up and stop blowing air but the system still working. Then after shutting it off and starting the a/c again it would start blowing, It went like that for a few months. I had junk stuck in the blower motor, I cleaned it, but it kept doing the same, as if it was freezing up inside (evaporator- maybe). The mechanics at KIA could not do anything for me since like yours they cannot recreate the problem, eventually my a/c stopped working. The problem is that the compressor does not get power when ON is selected, the fan just blow hot air now, the mechanics checked all the system and they can jump the compressor and get it to work but they cannot find the electrical issue, Im taking again to another KIA dealership, I think is the evaporator thermostat, also known as thermocon but we will see, I hope you can your solved cuz mine stinks. Keep me posted if you find the problem.
Good luck.
KieroTakoBell.