At roof top level remove the shroud covering your a c unit.
Rv roof ac drain off roof.
The moisture that is removed from inside the rv must be relocated to the roof of the rv where it usually evaporates.
The fix is easy.
On very hot and humid days well over 35 of the energy used by the roof air conditioner is for moisture removal alone.
For safety sake put a lock out tag on the switch or thermostat to warn others not to turn it on or better still disconnect the power to the rv.
One of the most common causes of the water leaking from air conditioner in rv is drain pan not able to drain the water properly.
Which ideally should drain the water from the evaporator coil on the roof instead of inside of the rv.
How to clean the drains on you rv roof air conditioner so it doesn t backup into your rv.
The condensation drips down into a pan which has an outlet on the side of the base pan that lets the water run onto the roof.
I would suggest taking off the exterior shroud and metal evaporator shield and cleaning the drip pan and checking the drain holes.
There are no drain lines for the ac unit on the roof of the rv.
On those types of days quite a bit of water may collect in the pan of the air conditioner.
If it is leaking inside you most likely have a clogged outlet which can be easily opened with a stiff wire probed in the drain outlet.
The reason for this gap is that on most roof top a c units the condensation drains out the bottom of the unit between the base of the air conditioner and the roof.