26
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
powering on.
No indication
1.
The battery voltage is far too
low (<1.4V/Cell)
2.
Battery polarity is connected
reversed. Input protector is
tripped
1.
Check if batteries the
wiring are connected and
well.
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. (Applia nee=> wide)
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 14
Overload error. The inverter is
overload 110% and time is up.
Reduce the connected load
by switching off some
equipment.
Fault code 12
Output short circuited.
Check if wiring is connected
well and remove abnormal
load.
Fault code 5
Internal temperature of inverter
component is over 90
℃
.
Check whether the air flow
of the unit is blocked or
whether the ambient
temperature is too high.
Fault code 6
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 10/11
Output abnormal (Inverter
voltage below than 202Vac or is
higher than 253Vac)
1.
Reduce the connected
load.
2.
Return to repair center
Fault code
1/7/8/9/15/16
Internal components filed.
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 2/3
Bus voltage is too high/too low
Fault code 15
Model fault
Buzzer beeps and red LED
is flashing.
Fault code 58
Fan fault
Fan fault
Fault code 50/51/52
Battery is not connected well or
fuse is burnt.
If the battery is connected
well, please return to repair
center.
Appendix: Approximate Back-up Time Table
