Tripac Evolution problems after oil/filters change

Will do that and see what happens, thx

Idk but I recently cleaned all my battery cables and put 2 new 200a and 250amp fuses there. Maybe I just need new batteries I guess. Its been 2 years since they were put on

 

So the 2amp F17 fuse is supposed to be off? Replaced it with a new one and its still not lighting up

 

APU runs around 10minutes before turning off and showing the red triangle and ENG

 

Have no idea when coolant was last changed. Was going to put fresh coolant when I serviced it but wasn’t sure how to drain it.

I did notice some oil (im guessing) under the oil filter that came out, too much oil?

Alao what wires am I looking at checking out, just the electrical?

 

I tighted the fuel filter with a filter tool, but don't think I tighten it too much.
Really the only way I can check all the wires is if I take off the panels because I cant see a lot with just the little panel that opens up, unless I get that mirror
So when the APU stops working, what am I checking at exactly to see where theres a short.
I have the inverter running along with the circuit breaker, not sure how it all even works together, since I never had both of those before.

And Im always getting Low voltage disconnect on my truck display for a few seconds whenever i turn the APU on even with the inverter running, Im guessing thats a bad thing?

 

I must've reset it 5-6x now. when it shuts off with the red triangle/ENG, turn off the APU outside, and then turn if off from the inside, Wait however long and then turn it on from the outside and then inside?
Thats the reset procedure?
Hasnt been working so far so Idk

Is there a way to connect the interface to a laptop with a USB? Would that show me the exact error code?
Is there a Thermoking application out there that I can use with the laptop?

This #### is so frustrating, you change oil and filters and clean the APU to make it “work better”, and now it isnt working how it should, design is so ####