Thanks, Old-Biscuit, and thank you for your service! The gasket is the place to start, but I’m unclear as to how to remove the unit to access the gasket. The Dometic manuals refer to removing bolts from the inside that screw up into the roof mounted unit, but Newmar keeps referring to “lag bolts”, which logically would unscrew from the top.
The bedroom ceiling under the ac is completely covered by a large black plastic panel, which looks like a pain to remove.
Removal of the top shroud revealed several areas (bolt heads?) where silicone had been liberally applied, but I didn’t want to scrape it off until I had a plan to repair. If electrical work, and ceiling panel removal is involved, I might stuff a rag into the ceiling panel and wait for better conditions.....
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