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Troubleshooting
34 900-0112-01-00 Rev B
Table 4 Basic Troubleshooting Steps
Symptom Unusual LEDs Possible Cause Possible Remedy
AC IN LED flashes HBX mode has disconnected
from AC.
MATE system display only: Check the
AC IN
hot key screen to see if HBX mode is in use.
MATE3 system display only: Check the
AC
Input Mode
setting with the
AC INPUT
hot key. In either case, if activated
prematurely, check the HBX settings.
(If this setting was intentional, then no
action is required.)
AC IN LED flashes Grid use function has
disconnected from AC.
If activated prematurely:
(MATE system display only) Check both
ADV/MATE/GRIDUSE
menu settings and
clock settings.
(MATE3 system display only) Check both
Grid
Use Time
menu settings and clock settings.
(If this setting was intentional, then no
action is required.)
(Continued)
Will not
connect to the
AC source.
AC IN LED flashes
AC source does not meet
requirements.
MATE system display only: Check
STATUS/FX/DISCON
for the reason for
disconnection.
MATE3 system display only: Check the
Last
AC Disconnect
screen with the
AC INPUT
hot key for the reason for disconnection.
In either case, if the unit never originally
connected, check the Warning menu.
Confirm the source voltage and frequency.
AC IN LED switches
between continuous
and flashing. Inverter
LED remains
illuminated.
Inverter’s output has been
connected to its input. Voltage
shifts are the result of trying to
match its own voltage.
Disconnect the wires from the inverter’s AC
input terminals or AC output terminals, or
both. If the problem immediately
disappears, it is an external wiring issue.
The inverter’s AC HOT IN and AC HOT OUT
must remain isolated from each other.
AC IN LED switches
between continuous
and flashing. Inverter
LED turns on and off
with each cycle.
Low AC input voltage. Can be
caused by weak AC source, or by
faulty input connection.
Test AC HOT IN and NEUTRAL IN
connections with AC voltmeter. If low or
fluctuating, this is an external problem.
Inverter clicks
repeatedly. AC
output voltage
rises or drops
to unusual
levels with
every click.
AC IN LED switches
between continuous
and flashing. Inverter
LED turns on and off
with each cycle.
(Generator only)
Inverter has been set to sell to
utility grid but has been
connected to a generator.
Unit will drive the generator voltage up to
disconnection, then reconnect to the
generator and try again.
MATE system display only: Set
ac transfer
control
menu to
gen.
This will keep it from
selling.
MATE3 system display only: Set
Input Type
to
Gen
in the
AC Input and Current Limit
menu. This will keep it from selling.