Are they on an inverter? It almost sounds like they didn't switch from inverter to shore power and were still on the inverter, or something happened at the transfer switch. They would be on the "entertainment" circuit for TVs unlike the AC, microwave, etc.
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John
2016 Thor Hurricane 35C with pups Piper and Annabelle
2013 Ford Fiesta toad
FMCA - F457085
Blog - https://traversity.us
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