Vintage air controls

[Gilmore]

So I have a Vintage Air surefit kit in my 1984 K10 with their electronic controls. It works great and when I turn the A/C on the little blue led lights up. Do the controls have a black light so you can see them at night in a dark cab or do you just turn on the dome light to make adjustments?

 

[SquareRoot]

It's backlit. I have the same system in my 85. I took the control unit apart and inserted some blue window tint so it's now blue backlit and matches my Dakota Digital and under dash lighting.

 

[Gilmore]

Ok well then I need to figure out why mine isn’t lit then. Do you know if there is a specific wire or fuse that I should check?