AC unit leaking after running for a while May 1, 2024 at 2:06 pm #40884 IA_CamperParticipant Joined: Jan 2024 Posts: 133 Likes: 143LikeUp1::It’s most likely a clogged drain pan. Pop the cover off your AC unit and clean it out. Dirt and debris make their way into the pan and clog the holes, which then leads to the water draining into the RV.