I would refer you to the manual but in general the inverter/charger is always powered. The Inverter also act like a transfer switch. If external power is present then it is passive and the power goes through it. If external power is removed then the inverter activates producing 120vac. You should have the ability to manually turn off the invert function.
The charger also provides 12 volt power when plugged in.
So having a red LED many be very normal and indicate it's state, check the manual.
If in fact the inverter is active when plugged in there may be an issues as for some reason the shore power is not getting to the inverter. Consider a complete reset, check the manual.
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2007 Country Coach Tribute 260 Sequoia
40' DP w/Cat400, F494513, Lithium Battery & Solar
Live next to Yosemite
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