How many people do you think will refer to this thread when it drops into the abyss?
I try to use the full name the first time in a post in a thread and put the acronym behind it in parentheses.
You may want to check the wire nuts at the Automatic Transfer Switch (ATS). They are not always installed well and this is a common ATS power problem.
That way when the acronym is used farther down in the post/thread it should be obvious what it means.
I don't always remember to do this, but I try.
Ted & Melinda
2016 ACE 27.1
2016 Chevy Sonic Toad
2020 Chevy Colorado Z71 Trail Runner Alternate Toad