© 2015 Sensata Technologies
Maintenance & Troubleshooting
43
Symptom
Possible Cause
Recommended Solution
Internal
fault
(status
indicator
blinks on 5
times every 3
secs)
An internal fault
detected.
To clear, perform a power
reset by removing DC
power to the inverter (see
Section 5.3). If the fault
does not clear, the unit
will need to be serviced.
Inverter’s INV
status light
is off
Inverter is switched
OFF, or no DC
voltage (battery)
connected to
inverter.
Switch inverter ON.
Connect a battery with
correct voltage to inverter.
AC input
won’t connect
(CHG LED
on remote
blinks)
Incoming AC voltage
not accepted if
below VAC Dropout
setting (80 VAC =
default).
Check incoming AC
voltage to inverter’s input,
ensure it is present and
above the
VAC Dropout
setting.
Appliances
turn off and
on, or there is
low AC output
power
Loose AC output
connections
Tighten AC output
connections.
Loose/corroded
battery cables
Clean and tighten all
cables.
Low batteries
Recharge or replace
batteries.
Inverter
AC output
voltage too
low or too
high (using
AC voltmeter)
Wrong type of
voltmeter used (will
display 90 VAC to
130 VAC depending
on the battery
voltage).
Most meters are made to
read average AC voltage.
While
charging, the
DC charge
voltage is
higher or
lower than
expected
If the Battery
Temperature Sensor
is installed, it will
increase or decrease
the DC voltage level
depending on the
temperature around
the battery sensor.
This is normal.
Troubleshooting Guide, Cont.