Apparently the drain for my AC unit at the beach got clogged and was dumping condensate under the floor for a while. I have been a home owner for 35 years and this is going to be my first insurance claim. And the crappy part is they the insurance company will probably not renew me as a result 💩
@jerry at least for my relatively modern central AC unit, the inside unit's condensate drainage has an inspectable transparent p-trap along with an opening to manually snake it and a float switch that trips a breaker if it clogs. Might be worth looking into retrofitting your unit with one.
@DaveMWilburn the floor drain into the sewer is what was blocked. The water wasn’t backing up in the drain pipe out of the furnace. So it was basically just getting dumped onto the floor.

@jerry

Great.