Operator`s manual
2003 - Magnum Energy, Inc.
33
4. TROUBLESHOOTING
Symptom Possible Cause Recommended Solution
No output power. Inverter is switched OFF. Switch the inverter ON.
Inverter LED is OFF.
Battery voltage is too low. Check battery voltage, fuses,
breakers and cable connections.
No output power. High or low battery voltage. Check the battery voltage at
Inverter LED is OFF. the inverter's terminals.
Discharge or charge batteries.
Replace the batteries.
No output power. Load is too small for search Reduce the search threshold
Green LED is flashing. mode circuit detection. or defeat search mode.
Low output power. Low batteries. Check and recharge batteries.
Appliances turn OFF/ON. Loose or corroded battery cables. Clean and tighten all cables.
Green LED is flashing.
Low batteries. Recharge or replace batteries.
Loose AC output connections. Tighten AC output connections.
AC output voltage seems Wrong type of voltmeter used Use a true RMS voltmeter.
too low when using a meter. (displays 80 VAC to 100 VAC).
Low surge power. Low batteries. Check and recharge batteries.
Battery cables are the Verify recommended cable lengths
wrong length or gauge. and gauges from the manual.
Replace cables as necessary.
Low charging rate Charge rate set too low. Adjust charge rate from remote.
when connected to
shore power. Low AC voltage (< 90 VAC). Check AC input wiring.
Low charging rate Generator output is too low Reduce the load.
when using a generator. to power both load and charger.
Increase the generators RPMs.
Charger doesnt charge. Loose or corroded battery cables. Clean and tighten battery cables.
Defective batteries. Replace batteries.
Wrong charger settings. Adjust the charger settings.
Wrong AC input voltage. Verify proper AC input
voltage and frequency.
1. Basic Troubleshooting
The ME Series inverter/ charger is a fairly simple device to troubleshoot. There
are only two active circuits (AC and DC) as well as a charging circuit. The following
chart is designed to help you quickly pinpoint the most common inverter failures.
WARNING: De-energize all sources of power including batteries (DC), shore
power (AC), and AC generator (as applicable).