17
Appendix A Troubleshooting
PROBLEM
POSSIBLE CAUSE
Solutions
UPS can't be turned
on
No lights on, no
warning sounds
Time of pressing the button is
too short
Keep pressing the button over 2
seconds
The UPS output has short
circuit or the UPS is
overloaded.
Turn off UPS and remove all
equipment to make sure there are
no problems on it or any internal
short circuit. Keep pressing
button over 2 seconds
“
BACKUP mode
”
Indicator is lit even if
the utility power is
present
The utility power voltage is out
of range
No solution because mode of
operation is correct
Poor connection to the input
utility power
Check the connection between
the UPS input outlet and utility
power
Fuse melted or circuit breaker
tripped
Replace fuse or reset circuit
breaker (you can find a spare fuse
for UPS at inlet of UPS).
The battery’s
indicator
is lit & Buzzer keeps
beeping
The UPS is overloaded
Remove less needed equipment
Available time of the
batteries is too short.
Battery not fully charged
Keep UPS "ON" for over 24
hours to recharge the batteries
The UPS is overloaded
Remove less needed equipment
Batteries are near the end of its
service life
Contact the dealer or service
center for replacing batteries
The charger is out of order
Contact the dealer or service
center for help
The backup time is
about 4min. when the
load is light.
Green Mode function active.
The load is lighter than 30W,
please disable the Green Mode
function. (See section 3.2)