Outback Power Systems GFX1312E Operator's Manual page 35

Symptom Unusual LEDs
Unit reads AC AC IN LED flashes
input, even
though no
source is
present.
Inverter hums
loudly. System
display may
show messages
for high battery Error LED
voltage,
low battery
voltage, or
backfeed error.
900-0112-01-00 Rev A
Table 4 Basic Troubleshooting Steps
Possible Cause
Internal transfer relay may be
damaged.
Inverter output is being fed with an
external AC source that is out of
phase.
Inverter has been incorrectly stacked
with another unit on the same
output. All units come defaulted as
master.
Troubleshooting
Possible Remedy
Disconnect AC input wires and turn
inverter on. Test the AC HOT IN and
NEUTRAL IN connections with an AC
voltmeter. If voltage appears there,
transfer relay may be jammed. Contact
OutBack Technical Support (see inside
front cover of this manual).
Disconnect AC output wires. Turn
inverter off and then on. If the problem
clears, reconnect the AC output wires. If
the problem recurs when reconnected,
an external AC source is connected to
the output.
Check HUB ports and make certain the
master inverter is plugged into port 1.
MATE system display only: Check
stacking settings in the ADV/FX/STACK
menu. Only one master is allowed per
system.
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