Dash A/C cold then hot

[Desert Kicker]

I have a 2015 FR3 30DS. While driving down the road with dash A/C on and fan off, I have a constant flow of air coming through the vents. I have to keep adjusting the temperature control knob because the air is so cold it becomes uncomfortable, then after a few minutes the air warms up to a level that is uncomfortable, and this happens without my touching anything.


Anyone else having similar problems and how to fix?


Thanks