Magnum Energy M-RC, Owner'S Manual

© 

2010 Magnum Energy, Inc

.

FAULT 

(red)

 - 

Under normal operating conditions, the FAULT 

indicator will be off. If there is a fault condition, this indicator will 

blink differently for each speci

fi

 c fault to help troubleshoot the 

inverter. Monitor this indicator for at least 10 seconds, and count 

the number of blinks that occur every four seconds to determine 

the particular reason for the shutdown. Once you have determined 

and cleared the fault, the inverter can be turned on. To help clear 

the fault condition, refer to the Troubleshooting section in the MM 

Series or MM-AE Series owner’s manual. 

• Blinks On 1 time every 4 seconds – 

Low Battery Voltage; the 

battery voltage level has dropped below 10.0 VDC (LBCO default 

setting**). 

Your batteries need to be charged. This fault condition 

will automatically clear when the battery voltage 

≥

 12.5 VD

C or 

the inverters begins charging (on models that have the internal 

battery charger).
• Blinks On 2 times every 4 seconds – 

High Battery Voltage; the 

battery voltage is above 15.5 VDC. Reduce or turn off the external 

charging source to bring the battery voltage down.

• Blinks On 3 times every 4 seconds – 

Over-temperature condition; 

the internal temperature of the in

verter has risen above acceptable 

limits. This is caused by loads too great for the inverter to operate 

continuously, or by a lack of ventilation to the inverter. When the 

unit has cooled, it will automatically reset and resume operation.

• Blinks On 4 times every 4 seconds – AC Overload; the inverter 

has turned off because the connected loads are larger than 

inverter’s output capacity, or there is a short on the output wiring. 

The inverter can be restarted after the AC loads are reduced, 

or the wiring short has been removed. To restart the inverter, 

momentarily press the 

ON/OFF button on the inverter or remote.

• Blinks On 5 times every 4 seconds – Internal Fault; the inverter 

has turned off because it has detected an internal problem. To 

clear this fault, the inverter will need to be reset by: 1. Press 

and hold the ON/OFF switch on the inverter for 15 seconds (the 

status LED must begin to rapidly 

fl

 ash) or, 2. Disconnect all DC 

power to the inverter for at least 15 seconds, and then reconnect. 

After resetting the inverter, momentarily press the inverters 

ON/OFF switch and verify the fault has cleared. If the internal 

fault remains, the inverter requires service at an authorized repair 

facility. 

MM-RC Remote Only

The MM-RC includes three additional charging LED indicators for 

information on the operation of the battery charger. Monitor the 

indicators (at least 10 seconds) to determine the charger status.

3.0 Operation

9