900-00277-01-001 Rev A
65
Troubleshooting
Table 5
Inverter Troubleshooting
Symptom
Possible
Cause
LED Indicator
or Icon
Possible Remedy
No AC output
(will not invert)
No DC voltage
N/A
Use a DC voltmeter to check the voltage directly on the DC
terminals. If not present, the problem is external. If present, the
inverter could be damaged.
Battery voltage
<40 Vdc
Red LED
Red
battery icon
Use a DC voltmeter to check the voltage directly on the DC
terminals. Check the voltage at the batteries. Charge the
batteries if necessary.
Circuit breaker
open (in wiring
compartment)
Green inverter
icon
Check position of load circuit breaker. (See Figure 34.) Use an
AC voltmeter to check the voltage on both sides of the circuit
breaker.
Inverter set to
Off
Gray
inverter icon
In the
ACTIONS
view, set the
Inverter
item to
On
.
Inverter set to
On
and will not
go to the “ON”
state
Rapid
shutdown
connection
not installed
Red LED
Red
inverter icon
Ensure that a jumper or rapid shutdown device is installed across
pins
5
and
6
of the
A
UX
terminal block.
Error condition
Red LED
Various
icons red
Check the
EVENTS
view for any errors.
Will not
connect to the
AC source
Circuit breaker
open (in wiring
compartment)
Gray
source icon
(grid or
generator)
Check position of circuit breaker. (See Figure 34.)
No AC input
Gray
source icon
(grid or
generator)
Using a handheld meter, check the AC voltage at the inverter’s
grid or generator terminals. (See Figure 34.) If not present, the
problem is external. If present, the inverter could be damaged.
AC source
does not meet
requirements
Red/green LED
Red
source icon
(grid or
generator)
Check the
EVENTS
view for the reason for disconnection.
Check the source voltage and frequency using the
Grid
or
Generator
tabs under the
STATUS
view. Confirm these
readings with a handheld meter if necessary.
Inverter is
connected to
two lines of
three-phase
source
Red/green LED
Red source
icon (grid or
generator)
Red inverter
icon
Inverter cannot connect to three-phase power. Make certain that
120/240 Vac power is available.
Inverter was
manually set
to disconnect
from AC
Gray
source icon
(grid or
generator)
In the
ACTIONS
view, set the appropriate toggle (
Grid
or
Gen
)
to
Use
. (If this setting was intentional, then no action is
required.)