User`s manual


7. TROUBLE SHOOTING
Problem Possible Cause Action to Take
UPS no reaction while AC is
connected
1. Line cord plug is loose
2. Fuse on rear panel blown
(Inside the drawer of inlet)
3. Dead wall socket
1. Check the line cord plug
2. Replace fuse
3. Check wall socket with a
table lamp.
Power output is normal, UPS
emits continuous beep, status
LED shows RED.
UPS is over loaded Turn off UPS and unplug
excessive loads from UPS.
UPS emits continuous beep,
status LED show RED, & no
power on outlets.
UPS has shut down due to
overload.
Unplug excessive loads from
UPS, press button to reset the
buzzer, and turn on the UPS
again.
UPS does not provide expected
run time
1. Excessive loads connected at
UPS outlets.
2. Battery is weak and can not
provide enough capacity.
Do not operate the UPS, and
leave the UPS plugged in for 10
hours. Then, test it again, if
UPS still can not provide
expected run time, battery
should be replaced.
Button on front panel doesn’t
work
1. The CPU inside UPS is not
running correctly.
2. Button damaged.
1. Push the button for 10
seconds to reset the UPS.
2. Unplug line cord and all loads
from the UPS to let it shut
down automatically, and call
for service.
To push button for testing under
AC mode, UPS emits urgent
beep (8 beeps per sec.) and
RED LED blinks at the same
time.
Battery is weak and should be
replaced
Replace batteries.
UPS can not be turned on. 1. Battery polarity wrong
2. UPS fault
1. Check battery connection.
2. Call for service.