Need help with a leak

We have a rain leak that comes in above four control panels on the curbside of our 2013 Flying Cloud 25. The water leaks into the trailer behind the water pump and tank gauge panel and then straight down to a non GFI plug, then solar monitor then inverter on/off switch. Been suspecting the outside stove vent and/or the exterior moonlight. Just prior to a nine hour rain shower, we covered that area and no leak. Decided to make an appointment at a dealer to inspect the room area. Note: am out of warranty. We are now in a campground so I removed the covered are over the vent and light and ran water for about an hour....no leak.



Before I go to the dealer, does anyone have any idea on where the leak maybe coming from?....maybe experienced the same thing? Appt is tomorrow AM.



Thanks, John