©
2009 Magnum Energy Inc
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Maintenance and Troubleshooting
4.0 Maintenance and Troubleshooting
The following information is provided to help you keep your MS Series Inverter/Charger in optimum
operational condition.
4.1 Recommended Inverter and Battery Care
The MS Series inverter/ charger is designed to provide you with years of trouble-free service.
Even though there are no user-serviceable parts, it is recommended that every 6 months you
perform the following maintenance steps to ensure optimum performance and extend the life of
your batteries.
WARNING:
Prior to performing the following checks, switch OFF both the AC and
DC circuits.
Visually inspect the batteries for cracks, leaks, or swelling - replace if necessary
Use baking soda to clean and remove any electrolyte spills or buildups
Check and tighten all battery hold down clamps (if applicable)
Clean and tighten all battery terminals and connecting cables [10 to 12 ft lbf (13.6 to 16.3
N-m)]
Check and
fi
ll battery water levels (Liquid Lead Acid batteries only)
Check individual battery voltages (load test those that have a voltage difference of more
than 0.3 VDC from each other) - replace if necessary
Check all cable runs for signs of cha
fi
ng - replace if necessary
Check the inverter’s cooling vents - clean as necessary
Check and tighten the inverter’s internal AC terminal block connections [16 in lbf (1.8
N-m)]
4.2 Storage for Mobile Installations
When placing the RV, boat, or truck into storage, it is recommended that you perform the following
to ensure the system is properly shutdown (or properly con
fi
gured for storage). This is especially
important for maintaining the batteries.
Perform the recommended maintenance steps listed in Section 4.1.
Fully charge the batteries.
Connect AC power (if available) and verify the breaker to the inverter’s input is switched
ON (to allow battery charging).
Verify the inverter is switched OFF.
Switch OFF all unnecessary AC and DC loads.
Disable the AGS (if installed) when the RV, boat or truck is in a con
fi
ned storage area.
WARNING:
If an AGS were to start and run the generator for an extended period
of time in a con
fi
ned area, a potentially fatal level of CO (Carbon Monoxide) could
accumulate.
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