Specifications

Model with LED Indicator & Audible Alarm
There are three indicators (Green/Red/Yellow) in the front panel of the unit.
Status
LED Indicator
Alarm
The unit is in Line mode.
Green LED on.
Off
The unit is in Line mode and
charging battery.
Green LED on and yellow LED
flashes every 3 seconds.
Battery mode
Yellow LED flashes every 10
seconds.
Off
Off-mode charging.
Yellow LED flashes every 3
seconds.
Off
Overload warning
Yellow LED flashes every 0.5
second
Sounding every 0.5
second
Battery low warning
Yellow LED flashes every 0.5
second
Sounding every second
Output is short circuited.
Yellow LED and red LED are
on.
Continuously sounding.
The unit will shut down
after it’s in fault mode
for 15 seconds.
Overload fault
Output voltage is too low or
too high.
Battery bad
Red LED is on and Green LED
flashes every 0.5 seconds.
Battery is overcharging.
Red LED and Green LED are
on.
Battery weak.
Red LED flashes every 0.5
second.
Model with LCD Display & Audible Alarm
Status
LCD Display
Alarm
Line mode
Off
Line mode with charging
battery.
and flashes
Off
Battery mode
Off
Off-mode charging
and flashes
Off
Fault mode
Fault code will be displayed.
Output fault: F0
Overload: F1
Over-charging: F2
Battery bad: F3
High output voltage: F4
Low output voltage: F5
Battery weak: F6
Continuously sounding.
The unit will shut down
after it’s in fault mode for
15 seconds.
The unit is overload.
The mark will flash
every second.
Battery weak at battery
mode.
The mark will flash every
second.
Load level indicator: Battery capacity indicator:
Display
Load Level
Display
Battery Capacity
75%~100%
battery voltage ≥ 12.5V (25V)
50%~75%
12.5V (25V)> battery voltage ≥
11.5V (23V)
25%~50%
11.5V (23V)> battery voltage ≥
11.0V (22V)
0%~25%
battery voltage < 11.0V (22V)
7. Trouble Shooting
Use the table below to solve minor problems.
Problem
Possible Cause
Solutions
Utility power is normal
but the unit is in
battery mode.
AC input power cord is not
connected well.
Check AC input power connection.
Input breaker is activated.
Reset the input breaker.
When power fails, the
backup time is
shorten.
The unit is overload.
Remove some non-critical loads.
Battery voltage is too low.
Charge the unit at least 8 hours.
Battery capacity is not full
even after charge the unit for
at least 8 hours.
Check the date code of the battery. If
the batteries are too old, replace the
batteries.
Nothing display on the
front panel when the
utility power is
normal.
The unit is not turned on.
Press power switch to turn on the
unit.
Battery is not connected well.
Check the external battery cable and
terminal. Make sure all the battery
connections to the unit are all correct.
Battery defect.
Replace the batteries.
Battery voltage is too low.
Charge the unit at least 8 hours.
The unit is in fault and
restart circularly.
The unit is overload.
Verify that the load matches the
capability specified in the
specification.
Output is short circuited.
Check the loads and remove loads
which cause short circuit.
If there is any abnormal situations occur, which doesn't list above, please call the service
people immediately for professional examine.