Outback Power Systems GS3548E Operators Manual - Manual (Page 55)

Troubleshooting
900-0145-01-01 Rev A 53
Table 6 Troubleshooting
Symptom Possible Cause Possible Remedy
Low charge rate.
Charge complete or nearly
complete. Check the DC voltage and charging stage using the MATE3, if
present. Confirm with DC voltmeter.
MATE3’s DC meter reads
significantly higher than actual
battery voltage.
Check the DC voltage on the inverter’s DC terminals. If different
from the MATE3 reading, the inverter could be damaged.
Otherwise, check the DC voltage on batteries with a voltmeter. If
different from the reading on the inverter, this could be a DC
connection problem.
High output loads. 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 temperature. The inverter will reduce the current rate for charging and other
activities if the internal temperature exceeds a certain level.
Check temperature readings and allow the inverter to cool if
necessary. (See page 59.) External cooling may also be applied.
Will not charge.
No AC input. See “Will not connect to AC” category.
Charger set to Off. MATE3 system display only: Check the Charger Mode screen with
the CHARGER hot key and set to On or Auto. (If this setting was
intentional, then no action is required.)
Grid Zero mode in use. MATE3 system display only: The charger is inoperative in Grid Zero
mode. (If this setting was intentional, then no action is required.)
Unusual voltage on
AC hot input line. Inverter has not synchronized
with input source.
MATE3 system display only: The AC In reading accessed by the
Inverter soft key may be erratic or inaccurate after initial
connection until the inverter has synchronized with the AC
source. This may require a short time.
Unusual voltage on
hot or neutral output
line.
System neutral and ground may
not be bonded.
Test “L” and “N” OUT test points with AC voltmeter. (See page 51.)
These measurements should give full voltage. Test neutral and
ground connections. This measurement should read zero volts.
Any other result means neutral and ground are not bonded
correctly. (If bonding is not required or prohibited by national or
local codes, then no action may be required.)
Inverter does not
perform the Offset
function when
expected.
Incorrect input mode. Offset does not function in Generator, UPS, and Backup modes.
Specific mode only offsets
under particular conditions.
Support mode will perform the Support function based on load.
This may appear as Offset without reaching the reference voltage.
Grid Zero mode will perform Offset based on the DoD Volts
setting. Other reference voltages are not used.
Reduced power sold
to the utility grid.
AC source voltage is driven high
when the inverter sells large
amounts of power.
When the inverter senses a rise in grid voltage while selling, it
reduces the sell current, to avoid forcing the voltage to
unacceptable levels. Check AC input voltage while selling. The
inverter may be operating correctly.
High temperature. The inverter will reduce the current rate for selling and other
activities if the internal temperature exceeds a certain level.
Check temperature readings and allow the inverter to cool if
necessary. (See page 59.) External cooling may also be applied.