Thermo King APU issue

I have a brand new truck, first driver. Assuming brand new APU. Tripac Evolution.

It worked great for a while. When it needed a regen, the steps worked nicely. This round of needed regen, however, fails. No matter what I do. It simply will not regen.

it gives the ENG code. Sometimes it starts, then atops after a few minutes, throwing that code. Other times it throws that code without starting.

I have turned off dash and main switch for hours. No resolution. It is a DPF issue, since the status light has the blinking red fault (1 flash, 2 flashes, over and over). From what I can gather, that fault is preventing the regen. I have cycled the panel many times, and that fault will not clear. Nothing I have tried after days of Google and the TK instruction to clear the code is not working.

when this first started, it began to regen but atopped. Ever since, this issue has plagued me.

what am I missing? I use it a lot, but surely it can’t be broken already.

 

Pretty sure there’s some type of warranty. It’s a Penske lease truck (I’m company). I was kinda hoping I missed something and not have to take it in.

The code you reference: closed air line. How does one tell, and can I resolve it? Is the valve easy to accidentally move while pretripping the unit?

What about the regen light? It’s on, but won’t regen

 

That's the same PDF I have, and I did figure the code was preventing regen. I did the procedure to clear the code, but it's not working. Code is still there, even after shutting the unit off with it's main switch for hours.

Is this beyond solving this myself?