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900-00277-01-001 Rev A ©2021 OutBack Power. All Rights Reserved.
Troubleshooting
Table 5
Inverter Troubleshooting
Symptom
Possible
Cause
LED Indicator
or Icon
Possible Remedy
Will not charge
No AC input
Gray
source icon
(grid or
generator)
See “Will not connect to the AC source” listings.
Inverter set to
Off
Gray
inverter icon
In the
ACTIONS
view, if
Grid
or
Gen
is set to
Use
but
Inverter
is
set to
Off
, inverter will not charge.
Charger set to
zero
Green
battery icon
In the
SETTINGS
view, check
Max charge current (A)
under the
Battery
tab. (If this setting was intentional, then no action
is required.)
NOTE
: The ability to charge from the utility grid may have been
restricted due to utility requirements.
Grid input set
to zero
Green
grid icon
In the
SETTINGS
view, check the following under the
Grid
tab:
Import limit (W)
.
Charge from grid limit (W)
(If either setting was intentional, then no action is required.)
NOTE
: The ability to import from the utility grid may have been
restricted due to utility requirements.
Low charge
rate
Charge
complete or
nearly
complete
Green
battery icon
Check the DC voltage and charging stage using the UI. Confirm
with a handheld DC voltmeter.
System display
DC meter
reads
significantly
higher than
actual battery
voltage
N/A
Using a handheld DC voltmeter, check the voltage on the
inverter’s DC terminals. If different from the UI reading, the
inverter could be damaged. Otherwise, check the DC voltage on
the batteries. If different from the reading on the inverter, this
could be a DC connection problem.
High output
loads
N/A
If total loads and charge exceed the AC input setting, charge rate
decreases to give priority to the loads. Turn off some of the
output loads and test the charge rate again.
High inverter
temperature
N/A
The inverter will reduce the current rate for charging and other
activities if the internal temperature exceeds a certain level.
Check temperature and allow the inverter to cool if necessary.
External cooling may also be applied.
Multiple HBCI
events
Battery bank
too small in AC
coupling
application
N/A
The inverter will charge the batteries with excess AC-coupled
power. The batteries must be sized accordingly. Increase the
bank size if necessary.