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 does not provide
expected run time
1. Excessive loads connected
at UPS outlets.
2. Battery is weak and
cannot provide enough
capacity.
Do not operate the UPS, and
leave the UPS plugged in for 10
hours. Then, test it again, if UPS
still cannot 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 6 seconds
to reset the UPS.
2.Unplug line cord and all loads
from the UPS, and call for
service.
Under AC mode, UPS emits
urgent beep (8 beeps per
sec.) and LED of “Replace
Battery” comes on.
Battery is weak and should
be replaced
Replace batteries.
No output when blackout
happen.
1. Dead battery.
2. UPS NG.
1. Replace battery.
2. Call for service.
