Okay. . .took the exterior cover off and inspected.
It is an Airxcel product (Coleman).
There are no drain holes for the forward high side condenser coil.
There is a sort of tray. . .non removable beneath the coil.
The tray exhibits what looks like residue from water evaporation.
No drain holes visible in the tray.
I reassembled it and ran it for a little over three hours yesterday.
No drips.
But this is currently in 12% Arizona humidity.
It was leaking in the 80% + humidity of tropical west coast of Mexico.
I suspect that this particular AC product cannot handle very high humidity - the drip tray simply fills up and overflows.
(The grill has controls and electrical connections - removing it while running is not a reasonable option for my technical abilities.)
2021 Arctic Fox 1150
'15 F350 6.7 diesel dually long bed
Eagle Cap OwnersโThe best lack all conviction, while the worst
Are full of passionate intensity." -
Yeats