We are nearing the end of our "Around the Country" trip, currently at our lot in Indio. Scheduled to leave for Bend this week. This morning we're just sitting sipping coffee and reading and a beeping alarm sounds. 8 beeps in a row with about a half second pause then again, .... and again and again. First check was smoke detector then lp/co2 detector, both nominal. I can't even locate the alarm. Sounds like ceiling in main solon. I gotta figure out a way to locate, determine issue and slince this thing. Thoughts please. Thanks.