Trekker...........
You didn't mention if you were having to use the furnace because of cool temps, but............we experienced a strange alarm sound recently when we were dry camping in a Walmart parking lot and had to use the furnace overnight. Turns out our house batteries were very low, as far as voltage goes, and I found there was a weak alarm sound coming from the base of the furnace unit. After confirming the status panel, I found the battery voltage very low and once I started the rig to charge the house batteries, the alarm stopped.
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Ken and Terry
2018 Sunseeker 2430S-CD, nicely modified and carried by a 2017 Ford E450 Sport
Former Georgetown 330TS owner for 10 years with more mods than I can count, pushed by our 2017 GMC Terrain
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