For what it's worth...
I am a little late to the party on this one, but I have my unit that was built around 2011 and not put into service until 2015. I have had several issues where an unrelated battery charging problem has led to a complete loss of battery power while the car was sitting. This in turn caused a serious control problem with the Vintage air not blowing cold or even not blowing at all. I was at the point of ordering a new controller but ultimately solved the issue. I ended up unplugging the wires from the controller and then plugging them back in, while also disconnecting the power to the unit. It seems to be some sort of reboot, I also have had to perform the recalibrate. Once the the charging/battery issue was resolved I have not had any more issues.
