Question 2020 Beyond 22C Coach A/C Question

[Jktexaa]

I have a 2020 or 2021 Coachman Beyond 22C (Camping World not sure what year it is). It has 18K miles on it.
It has been extremely hot in Texas this year. One time the temperature in the coach read 125 degrees.
I was running the A/C and then used my 12V TV or the microwave and about 1 to 2 min after starting those devices, the A/C would stop (it is a Dometic) and trip its 15V circuit breaker. I turned everything off, reset the breaker and everything came back on. This happened about 5 times. I let the RV sit and when the days were cooler, above 105 ) I tried again and this time the breaker did not trip. Therefore I surmised it had something to do with the heat.
A couple weeks went by, RV sitting in driving not being used, and I started generator and turned on A/C. Then I turned on my 12 V TV. This time, no breakers were tripped but the A/C just stopped running.
I can find no on/off switches on A/C and as I mentioned no circuits were tripped.
I am not sure how a 12V TV could affect the A/C.
In all cases you could hear the generator start to run down until the A/C shut off and then it picked back up.

Anyone have a thoughts on what I should be looking for to start the A/C and thoughts on why/how a 12V TV could shut down A/C

 

[John&Andrea]

Did you get this figured out. I was not sure what may be going on. At those high temps, the AC was definitely working hard.

 

[TheLooks]

These AC units are not designed to cool when it is that hot, they over heat and have external and some have internal, thermal overload protection. Even though you use 120v ac to run the AC unit, it needs 12v dc to run the controls and tell it what to do. Sounds like your battery or converter or both are not providing enough dc current.

 

[Jktexaa]

Thank you for those thoughts! I did not realize that the A/C needed 12v but that sort of makes sense.
I have researched a lot but no good.
I am going to take to the RV dealer and see what they say. I feel pretty confident that the HEAT had a hand in this.
I will update when I find out anything else.

 

[AbdRahim]

It looks like that has only one 13000btu A/C. Not even close to being able to cool at those temps. At 95 degrees the A/C in my class C ran continuously from morning to night. No cycling. I had to open the dump vent to get the living area cool enough to even begin to get comfortable. Sounds like the system was working beyond its capacity.