Ac condenser fan

[57taskforce]

Can anyone tell me how the 96-0whatever vortec 454 factory auxiliary electric condenser fan is supposed to work? I’ve recently put my 98 back to daily driver use and have noticed it’s not kicking on the same as it used too. I’ve only noticed it running once lately and my idle/traffic ac vent temps are close to 60* when cruising they are at or slightly below 40* with it close to 100 outside. The ac charge is not the issue. When it gets to about 210 the mechanical clutch fan will kick in and the ac will get cooler. I seem to remember that auxiliary fan mostly always being on when the ac was on in the past but I really haven’t driven the truck really much at all over the last 9 years so maybe I’m remembering wrong.