Cascadia bunk A/C trouble

Mine has a fairing that runs under the drivers side cabinet. . How do you access underneath?

 

Maybe find a Company that maintains their equipment and is concerned with driver comfort?

 

Look under driver side cabinet door. That panel pops off.

 

Hey Brother ..where are those 2 big fuses located

 

Hello Brother..where those fuses are located.i have same problem.i have APU with 4 spare batteries.factory installed ApU on cascadia 2020. Heat and Ac shuts off after 15 minutes. While engine is off.i noticed one thing whenever I used to shutt off my truck a black fan behind the bunk will turn on and run for few seconds and turn off.now it doesn't do that anymore .