The way these Thor's are wired, plugging into shore power when stored with the use store switch in store defeats the purpose of connecting to shore power. On a Thor, that switch must in the use position, for the converter/inverter (if you have one) to charge and maintain the house batteries. On my previous coach, there was a 12 volt disconnect switch. Mattered not how that switch was set, inverter always charged house batteries when plugged in. Since I have 110 volts available where I store, I always store connected to shore power, with the switch in use.
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