help with AC

[shovelhead86]

My bedroom AC causes the the ceiling to become wet and drip . It is condensation forming on the ceiling panels. it is not water vapor coming from the vent. It only happens when it has been on for a long time. If anyone has experienced this, What is the remedy? Thanks in advance The camper is a 2018 Montana 3791RD

[Ram Montana High Country]

There is an air leak - needing to go on the roof and pull the cover on the AC - take a philips screwdriver, utility knife and aluminum foil furnace tape. you should find two aides of air. start taping joints and separations. OH PLEASE make sure the power is OFF !!!

[Daryles]

In the files section is a TSB regarding Dometic AC unit drip pan leak. The drain holes were not punched out.

https://www.montanaowners.com/forums...?do=file&id=52

Also, look in the return vent. Make sure it is sealed up properly. If not it is pulling hot moist attic air in from outside causing more condensation.
Picture 1 hole big enough for three fingers to go through.
Picture 2 all taped up. No more outside air leaks.