Lonestar AC Power outlets in sleeper not working?

Maybe a silly question, but did you turn on the inverter? My current truck is the Lonestar's ugly sister with the electric APU and there is an inverter under the bunk and a couple of A/C outlets mounted on the wall.

To find the inverter, raise the bottom bunk and look for it on the back wall. You may be able to see it when you open the driver's side, side box, but you won't likely be able to reach it.

 

Sounds like you have the same as mine....electric APU. To be sure, do you have the passenger side, side box that has louvers on it, or can you open the passenger side box? If it has louvers, that is to keep air circulation for the electric apu. Mine has a battery pack under the driver's seat AND a battery pack in a plastic compartment just in front of the 5th wheel, in between the frame rails.

My buddy has a slightly older ugly sister and his extra battery pack is mounted in a metal storage compartment on the driver's side. Both trucks have the EPU (electric APU...maybe Electric Power Unit?)

 

That may be the issue. I cussed and discussed this with my buddy, the one who has the slightly older Prostar. His inverter is installed in a different place than mine and is under the impression our inverters were installed by our shop guys prior to our trucks being placed "in service".

Our EPU trucks do not have any A/C outlets installed, so most of us use a power strip and run the cord to the inverter. In the OP's case, it's possible the previous owner of the truck (if he got it used) had an inverter and ran the A/C plugs to make it convenient. When that owner turned the truck in, he may have taken the inverter with him.

My buddy also informed me I was a knucklehead. The extra battery pack is used to power the sleeper HVAC (heat and air) when the truck is turned off. It has nothing to do with an inverter. (slaps self on forehead). Yep, my buddy is right on both counts. Knucklehead and HVAC battery pack . Also, the truck will "Auto Start" when the main batteries get low, providing you have the Auto Start button on the dash in the ON position.