Auto climate control and AC

Was driving and the AC randomly stopped, it sputtered, the lights around the AC controls flickered and when I stopped to check on it, turned it back on and completely off/gone, no air at all coming through my vents. It was hot (110 out) and my temperature has been fluxing a little and running warmer than normal, mechanic says that looks fine but has not come across the issue like what I am having right now. Every now and then it will turn back on but I cannot control any of it, the air/heat/defrost. So far I have not been able to make it turn on and when it does pop on it still blows cold but shuts off again shortly after coming on. Where do I have the mechanic start?

Blower motor and fan (it is loud has been the whole time I have had the car. Brother told me to have it changed so I did). Has been replaced in the last six months as well as a whole bunch of front end work (I hit a hog at night and the car and I came out in one piece), but this work was done back in February this year and I just started having this issue in the last week (July).