No-name airconditioner on 2008 Arctic Fox 1140 leak

Same problem, remove cover may have at least 2 drain holes; one on each side, clogged.

Solved my problem.

When you remove the cover take a picture of the serial number, model number plate. Or, write down the info. You can search the manufacturer.

Caution when tightening the AC from the inside, don't over tighten as it could damage the seal. There may be tabs along the rim where the ac meets the roof that provides a guide on how tight the ac should be. The installation instructions may provide in on how to appropriately tighten the ac.

Rich, have you run it with the diffuser grill off to see where the drips are coming from?

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.)