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6. Trouble shooting
Problem
LCD/LED/Buzzer
LCD/LEDs and
Units shut down
buzzer will be
automatically during
startup process.
seconds and then
No response after
No indication.
power on.
Input voltage is
displayed as 0 on
green LED is
Mains exist but the
unit works in battery
mode
Green LED is
When the unit is
turned on, internal
LCD display and
relay is switched on
LEDs are flashing
and off repeatedly.
Fault code 07
Fault code 05
Fault code 02
Fault code 03
Buzzer beeps
continuously and
red led is on.
Fault code 01
Fault code 06/58
Fault code 51
Fault code 52
Fault code 55
Fault code 56
Explanation/Possible cause
The battery voltage is too low
active for 3
(<1.91V/Cell)
complete off.
1. The battery voltage is far too
low (<1.40V/Cell).
2. Battery polarity is connected
reversed. Input protector is
tripped.
the LCD and
Input protector is tripped.
flashing.
Insufficient quality of AC power
flashing.
(mains or generator).
Battery is disconnected.
Overload error. The inverter is
overload 110% and time is up.
Output short circuited.
Internal temperature of inverter
component is over 90°C.
Battery is over charged.
The battery voltage is too high.
Fan fault.
Output
voltage below than 202Vac or
is higher than 253Vac).
Fault code
malfunctioning
08/09/53/57
components.
Over current or surge.
Bus voltage is too low.
Output voltage is unbalanced.
Battery is not connected well or
fuse is burnt.
67
1. Recharge battery
2. Replace battery
1. Check if batteries the
wiring are connected and
well.
2. Recharge battery.
3. Replace battery.
Check if AC breaker is
tripped and AC wiring is
connected well.
1. Check if AC wires are
too thin and/or too long.
2. Check if generator (if
applied) is working well or
if
input
setting is correct.
Check if battery wires are
connected well.
Reduce
load by switching off some
equipment.
Check
connected
remove abnormal load.
Check whether the air
flow of the unit is blocked
or whether the ambient
temperature is too high.
Return to repair center.
Check if spec and quantity
of
requirements.
Replace the fan.
abnormal
(inverter
1. Reduce the connected
load.
2. Return to repair center.
internal
Return to repair center.
Restart the unit, if the
error
please return to repair
center.
If
the
connected, please return
to repair center.
What to do
voltage
range
the
connected
if
wiring
is
well
and
batteries
are
meet
happens
again,
battery
is
well
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