Climate Control (AC) controller backlight out

[daanish]

Hi all,
Noticed that the backlight on part of the control panel for the AC controls isn't lighting up which means a section of the LCD and some of the actual buttons aren't lit up when my lights come on.
Not certain of the cause whether it's as simple as a blown fuse or something more involved.

Any info on what's broken and how to fix it would be gold.