Load level indicator:
Battery capacity indicator:
Display
Load Level
Display
Battery Capacity
75%~100%
75%~100%
50%~75%
50%~75%
25%~50%
25%~50%
0%~25%
0%~25%
7. Trouble Shooting
Use the table below to solve minor problems.
Problem
LCD/ Buzzer
Explanation /
Possible cause
What to do
Buzzer beeps
continuously
Fault code 07.
Overload error. The
inverter is loaded with
more than 110% load
and time is up
Reduce the connected load
by switching off some
equipment.
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 Inverter
component 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.
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.
Internal components
failed.
Return to repair center
Mains exist but the
unit works in battery
mode.
Input voltage is
displayed as 0 on
the LCD
Input protector is tripped
Check if AC breaker is tripped
and AC wiring is connected
well.
The mark
on or
flash
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
check if input voltage range
setting is correct
(UPS
Appliance)
Unit shuts down
automatically during
startup process.
LCD 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. Battery polarity is
connected reversed.
1. Check if batteries and the
wiring are connected well.
2. Re-charge battery.
3. Replace battery.
When the unit is
turned on, internal
relay is switched on
and off repeatedly.
LCD display
flashing.
Battery is disconnected.
Check if battery wires are
connected well.
Input circuit breaker
acted and no output
voltage on terminal
but the LCD display
show the normal
output voltage
LCD display is
normal
The relay had been
damaged during the AC
short circuit
Return to repair center.
If there is any abnormal situations occur, which doesn't list above, please call the service
people immediately for professional examine.
