I have an '05 Bounder on a WH22. Let me tell you about a problem I had with my levelers and yes, it indirectly, affected my dash air conditioning
The front driver side leveler was busted, when I put the tranny in Drive, the leveler alarm went off, as it should.
There is a fuse box on my dash and I pulled the 5A fuse labeled "Jacks alarm", nothing happened. After more investigation I pulled the 5A fuse labeled "Step alarm" that cleared the jacks alarm. However, it also killed my dash AC
! I put the fuse back in and the AC was fine. This fuse just feeds the dash AC controls not the compressor and the stuff under the hood.
So, I would check the fuses on the dash even if there isn't one labeled AC controls.
Hope this helps.