On the lower right side of my climate control module, I've got the rocker switches for AC on/off, and recirculate on/off; each with their own power indicator light on the left of the switch. Whenever I turn my recirculate on, I get the traditional amber colored light that comes on. When I turn on my AC, most of the time, I also get that amber colored light to come on. However, in some circumstances, the indicator light for the AC is white in color! I've tried to figure out if circumstances dictate white versus amber, and best I could guess is that white appears when the AC is running in colder exterior conditions, and amber when outside conditions are hotter. However, it's a loose relationship if any.

I've gone through my user's manual and my Hayne's, and neither mentioned anything about the expected color of the power lights, or that there should be a color change at all.

What's the deal?