2015 and newer model F150 no heat

I have a 2015 f150 that did not blow hot air. I tried the antifreeze level and saw many videos on the issue. I was preparing myself for a long weekend taking the dashboard apart when I came across a video where the guy points out the blend door actuator on the passanger side. I figured I'd try it. its 12am why not. lol I figured the gear might be stuck or something. so I pushed on it to rotate it and it moved. suddenly the vents started blowing hot air! it is a quick fix for now until i buy the new part. but hey... it works. :)