AC / Air Conditioner drains

[DavidMort]

Do the Atwood 15078 AC units have a drain hose? If so where are they located. We are in FL/ hot and humid. AC works ok to keep unit cool, but feel humid in the rear bedroom. So looked for drain pipe it thinking it might be plugged Did not find them, not mentioned in manual or shown on diagrams. I do have a little water running down the side of RV at the front left coming off the roof at the end of drip channel.

[bclemens]

No drain tubes.

[DavidMort]

I found a service manual from 2013 on line:
I do not have water dripping but the Relevant section in the manual is:
""
11: Water drips from the inside plenum when the unit is in cooling mode. Ingress of water on cooling mode
may be due to either of four conditions.

1: The unit is installed more than 5 deg. out of level, particularly nose down.
2: The drain holes in the evaporator area are blocked.
3: Condensate that has drained onto the roof, has re-entered the installation hole
either under the roof seal of the air conditioner or a roof seam near the unit is
faulty. If case 3 appears likely, the unit should be reinstalled using a new
sealing gasket and following the Atwood installation instructions explicitly.
If there is a roof seam involved, clean the seam area thoroughly and reseal
with a silicone sealant compatible with your roofing material.
Please Note: If water “pools” around the air conditioner (i.e. the roof has sagged around the air
conditioner) then the cabin manufacturer should be consulted.

4: In high humidity areas, condensate may occur on the underside of the evaporator tray above the
inside plenum. This usually associated with running the unit on low speed for a prolonged
time period. Under these conditions use the high or medium speeds and avoid “Auto” which can cause the inside fan to drop to low speed as the set point temperature is approached.
""
Trying # 4, will have to wait to get on roof to check for #2

[halla]

Ours drips inside during high humidity, we use the dry setting on the thermostat, no more issues. I believe you can run the fan on high, turn off auto and it also helps.

[donanddona]

The AC works by also removing humidity. Moving around in the RV you could feel different levels of humidity. Do you have ducted AC? Do you have one or two ACs? You could look into each plenum, also drop the main inside cover to ensure everything is flowing without restrictions. I normally run the main louvers as discharge during day light hours, closing the ducted areas. Just reverse the flow during evening and night hours. Do you need to cool the bedroom during the day?

[DavidMort]

2 AC units, 1 front living, 1 bedroom in back
more humid in the back
have set AC in back to med speed and opened louvers so not ducting during day
this helps