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TROUBLE SHOOTING
Problem
LCD/LED/Buzzer
Explanation / Possible cause
What to do
Unit shuts down
automatically
during
startup
process.
LCD/LEDs
and
buzzer will be active
for 3 seconds and
then complete off.
The battery voltage is too low
(<1.91V/Cell)
1. Re-charge battery.
2. Replace battery.
No response after
power on.
No indication.
1. The battery voltage is far
too low. (<1.4V/Cell)
2. Internal fuse tripped.
1. Contact repair center for
replacing the fuse.
2. Re-charge battery.
3. Replace battery.
Mains exist but
the unit works in
battery mode.
Input
voltage
is
displayed as 0 on the
LCD and green LED
is flashing.
Input protector is tripped
Check if AC breaker is
tripped and AC wiring is
connected well.
Green LED is
flashing.
Insufficient
quality
of
AC
power. (Shore or Generator)
1. Check if AC wires are
too thin and/or too long.
2. Check if generator (if
applied) is working well
or if input voltage range
setting
is
correct.
(UPS
Appliance)
Green LED is
flashing.
Set
“SUB” (solar first) as the
priority of output source.
Change
output
source
priority to
“USB” (utility first).
When the unit is
turned on, internal
relay is switched
on
and
off
repeatedly.
LCD
display
and
LEDs are flashing
Battery is disconnected.
Check if battery wires are
connected well.
Buzzer
beeps
continuously and
red LED is on.
Fault code 07
Overload error. The inverter is
overload 110% and time is up.
Reduce the connected load
by
switching
off
some
equipment.
If PV input voltage is higher
than specification, the output
power will be derated. At this
time, if connected loads is
higher than derated output
power, it will cause overload.
Reduce the number of PV
modules in series or the
connected load.
Fault code 05
Output short circuited.
Check if wiring is connected
well and remove abnormal
load.
Temperature
of
internal
converter component is over
120°C.
Check whether the air flow
of the unit is blocked or
whether
the
ambient
temperature is too high.
Fault code 02
Internal temperature of inverter
component is over 100°C.
Fault code 03
Battery is over-charged.
Return to repair center.
The battery voltage is too high.
Check if spec and quantity
of
batteries
are
meet
requirements.
Fault code 01
Fan fault
Replace the fan.
Fault code 06/58
Output
abnormal
(Inverter
voltage below than 190Vac or
is higher than 260Vac)
1. Reduce the connected
load.
2. Return to repair center
Fault code
08/09/53/57
Internal components failed.
Return to repair center.
Fault code 51
Over current or surge.
Restart the unit, if the error
happens
again,
please
return to repair center.
Fault code 52
Bus voltage is too low.
