Troubleshooting
This unit features eight LED indicators and an alarm buzzer to help diagnose any malfunctions
during operation. In the event of malfunction, the alarm buzzer will sound prior to the inverter
shutting down. You should immediately check which LEDs are glowing to determine the cause
of the malfunction.
TIP:
FOR QUICK REFERENCE, IF THE UNIT IS EXPERIENCING A MALFUNCTION: THE INVERT
LED WILL BE OFF AND THE BYPASS LED WILL BE GLOWING RED.
LED / Issue
Meaning
LOW VOLTAGE LED is ON
The input voltage is too low for normal operation.
Fix:
Check that the power source is appropriately rated for use with the
inverter. If using
InverterWizard
, check the Low Voltage Alarm thresh-
olds are properly set for the battery voltage you are using to power the
inverter, for example: 21V for a 24V battery and 28V for a 32V battery.
If the above are all in working order, the cause is likely an internal
component failure and the unit must be returned for repair.
HIGH VOLTAGE LED is ON
The input voltage is too high for normal operation.
Fix:
Check that the power source is appropriately rated for use with the
inverter. The inverter can be damaged if the input voltage exceeds the
rating indicated on the label. Over-voltage damage is not covered under
warranty.
If the above are checked and in working order, the cause is likely an
internal component failure and the unit must be returned for repair.
OVER TEMP LED is ON
The unit’s internal temperature is too hot for normal operation.
Fix:
Check that the unit’s cooling fans are functioning. If the fans are NOT
running, the unit must be returned for repair. If the fans are running,
you may need to remount the inverter for improved ventilation.
The inverter will automatically derate its maximum power rating to
maintain a safe operating temperature. If the internal temperature
exceeds the safe maximum, the unit will shut off its outputs. When the
temperature drops to safe operating range, the inverter will automati-
cally ecover.
OVER LOAD LED is ON
The load is drawing too much current from the inverter.
Fix:
The load has been drawing the peak current from the inverter for
longer than its intended duty cycle. Reduce the load on the inverter by
disconnecting some devices from the output.
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