Good news.
I left it overnight, and it is now working well.
It's a norcold.
Funny thing is, I started with the coldest setting.
Waited a couple hours.
Had the problem I described.
Left it overnight on the med setting, and now temps are correct.
I guess it just needed time.
This rig has been sitting for 2 years.
I guess it needed to just wake up.
Quite the relief.
I do have a total noob question:
Since roof a/c etc need shore power to work, is there a reason why I cannot run the generator, and run the shoreline into the coach with a 110 adapter and plug it in.
The seller told me not to do that.
Seems to me, that kind of defeats the purpose of having a generator.
Yes, I have the manual.
I have read it.
There is a lot to learn.
It's kinda confusing to me, on the electrical side.
Seems to me, you CAN do what I explained.
Am I just misunderstanding something?