What is the battery bank voltage? Have you had the batteries tested? If the battery bank voltage is too low, the inverter charger will fault out. If the battery voltage can be brought up be a free standing charger a bit and not be so much of a load the the inverter can pick up and charge the bank successfully.
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Mike, RVIA & RVSA Certified Master RV Technician
Amy, Dr. Assistant - Roxie & Mei Ling, four legs each
2000 Gulf Stream Scenic Cruiser 450 hp & 1330# torque
06 Saturn Vue, 06 Chevy Z71 4x4 & 2014 Corvette Z51 M7
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