Discharge over temperature
Battery under temperature
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.
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.
Mains exist but the
unit works in battery
mode.
Input voltage is 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.
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)
Set “Battery First” or “Solar First”
as the priority of output source.
Change output source priority to Utility first.
When it’s turned on,
internal relay is
switching on and off
repeatedly.
LCD display and LEDs are
flashing
Check if battery wires are connected well.
1.Check whether all fans are working properly.
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