AC and different fuse panel

[Waterloo]

My first thought is to replace the fuses, they tarnish a bit and do things like you are describing. Normally replacing the old with new solves the problem. I carry a bag of fuses, the most popular failure in mine is the 30 amp fuse for the AC blower motor. I believe that issue is now fixed in your 2016.

I would also inspect for any cab leaks. On our older ProStars where the roof cap meets the cab, water enters that gap and makes its way down the A pillar on both sides. On the driver side, at the kick panel under the dash, the small panel by your left ankle, behind that is where the Cab Controller is located. That gets wet, all sorts of stupid can happen electronically in the truck. Something to be aware of and inspect periodically. The only fix I know of, and I have done it, is to fill that gap with clear silicone to seal it up.