Battery Supply Issues - Going Nuts
When disconnected from shore power and operating on house batteries, after about 5 minutes my motorhome goes dark with minimal load. Meaning I have no 12 volt supply and my inverter turns off. My coach battery bank of 4-6Volt batteries are approximately 2 years old. I am showing the voltage of the bank is 12.6 Volts.
My motorhome is a 2006 National Tropical T350 with the Freightliner chassis. My inverter charger is a Trace Engineering Legend Series L1512 with a RC-9 control panel, RV Custom Products Battery Control Center.
I have replaced the boost solonoid and jumpered the battery disconnect box on the BCC to eliminate these as the problem. I have verified the the large fuses in the coach battery compartment and the chassis battery compartment are good. I have also tried disconnecting both the remote temperature and remote panel connections on the front of the inverter/charger.
It appears to me the house battery cable that terminates on the booster solonoid is not a straight path to my battery bank? Can the inverter/charger shut off all 12 Volt house battery supply power to the coach? When in charging mode, I do not get the same voltage at the chassis and coach battery bank. Here are my questions:
- I believe I have 2 wire feeds coming from my house battery bank. Do both of these feeds go to the inverter/charger?
- Why do I NOT get voltage at the J3 post on the BCC if this is connected directly to my house battery bank?
- Can the inverter/Charger cut off all 12 Volt coach battery supply?
- How do I eliminate the inverter/charger as the problem? I believe the internal transfer switch in the inverter charger turns everything off.
- If the inverter/charger is the issue, can I repair it? What would be a budget replacement if need be.
"If you think it could rattle, it will"
2006 National Tropical LX T350, CAT C7 350HP, MH3000
2014 F150, SMI Air Force One, Blue Ox Avail