Old thread, but I just bought a demo unit and it was doing the same thing. After seeing the way it was designed, I suspect many others have this issue, esp in high humidity. Dehumidifying the air is part of the AC process. Hot room air is drawn in thru back of unit, passes thru a filter and then across the evaporator. The evaporator is extremely cold and makes the air cold. When this happens, the water in the humid air condenses on the evaporator coils and drips into a collection tray. The tray has two small holes, 1/4 inch diameter, that let the water drain out. The water then passes over the condenser coils to help it cool. Any water that doesn't evaporate ends up in another tray at very bottom of unit. So, if you don't regularly clean the filter in the back, unfiltered air will bypass the screen in the area where you put your fingers to remove it. There's actually a 1/2 inch gap and the air will follow path of least resistance. The dust is now drawn into the evaporator and mixes with the condensed water. This mix goes into the first tray and plugs the two 1/4 inch holes. The holes plug because directly below is the tightly packed condenser find, so it doesn't take much. Since the water has nowhere to go, it blows into the room. To fix, remove front and rear covers and control panel. The fan, styrofoam and black plastic shroud slide up and out in one piece after removing the metal strap . Now you can see the little tray and use a pick to clean out the holes. Hope this helps.
Date published: 2020-07-28