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APP-A. Troubleshooting
Troubleshooting procedures give simple instructions in determining UPS
malfunctions. Start the troubleshooting procedure if you witness any alarm indication.
Alarm
The UPS has an audible alarm. When different situations occurred, UPS will alert
users with display and buzzer.
Battery-mode (Slow alarm)
During battery mode, the alarm will beep every 2 seconds. The alarm will stop
when UPS return to Line-mode.
Battery-Low (Rapid alarm)
During Battery-low (less than 30%), the UPS will beep every 0.5 seconds. The alarm
will stop when UPS shutdown or returns to Line-mode.
Overload (Constant alarm)
When UPS operating with load exceeded its maximum capacity, UPS will emit a
continuous alarm to warn an overload condition. UPS will automatically turn off to
protect your essential load. Please consider remove or shutdown less-essential loads.
Silencing Alarm
Here is the instruction to mute the active alarm or future alarm notification:
Note
: During battery-mode, if the battery is low on power, the alarm will sound
regardless of silent-mode enable/disable.
If troubleshooting does not include or resolve your situation, feel free to
contact for technical assistance.
PROBLEM
POSSIBLE CAUSE
Solutions
UPS can't operate
switching on
No lights on,
no warning sound
Power source mistake or
low battery power
Check the main power connection If operating
with battery power,
ensure enough charging time for UPS
Time of pressing the button is
too short
Press and hold the "ON" button for
a longer duration
Output short circuit or
overload on UPS
Turn off UPS and take off all load
Check for any potential internal short circuit
Then attempt to turn on UPS again
Hardware failure
Contact for technical assistance
Battery out of order
Replace battery or contact for technical assistance
UPS always remain on
battery-mode regardless
of main power connection
No power source input
Check the main power source and cable
Fuse melted or Circuit
breaker tripped
Reset the breaker or replace the fuse
(spare fuse is in UPS inlet) then restart the UPS
The main voltage is out of the
UPS input range
UPS function normally,
check your main power voltage
Overload/Fault indicator lit
or constant buzzer beeping
UPS load exceed the capacity
UPS overloading
Remove or shut down the less essential load
Battery mode duration
below expectation
Batteries aren't fully charged
Batteries are worn out or faulted
Ensure enough recharge time for UPS
Run a self-test to check battery status
Replace UPS battery if the problem remains
The charger is out of order
Contact for technical assistance
Green mode enabled.
No-load or light load shutdown engaged
Operation normal
Turn off green mode to disable such function
The battery fault indicator
occurred
Battery not connected
Check the UPS batteries;
make sure they are well connected
Battery out of order or damaged
Replace battery
