No way to be sure, but perhaps the 4 golf cart batteries are too flat to take a charge. Did you have your rig plugged into shore power where you had it stored? The inverter should have kept the 6 volt batteries charged up enough to start the generator and/or run the inverter for the residential fridge -- but you would have needed to check and top up the water several times in that storage period.
I had a really difficult time watering my 6 volt batteries due to the tight quarters under the windshield where they are mounted -- so I had the watering caps and squeeze bulb system installed. Now I just pump the bulb until all the white floats show each cell is properly filled about once every 3 months or so...
By the way, I replaced my Xantrex with a true sine wave inverter about two or three years ago...and I don't recall much about the old control panel anymore.
Chuck
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2007 Tour Master T40C
Acura MDX toad
"It takes a great deal of time to recover from any improvement..."
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