4
Maintenance
1. During normal use, an UPS battery will last three to six years depending on the
number of discharges and temperature. Replacement and servicing the battery
should be performed or supervised by personnel knowledgeable of batteries and
their precautions. Keep unauthorized persons away.
2. Charge the UPS’s battery every 3 months during extended storage.
3. Disconnect the power during extended storage to avoid overcharge of the battery.
4. Avoid overload or short circuit even though the UPS has a built-in overload and
short circuit protecting function.
Troubleshooting
Problem
Possible Cause
Action to take
UPS not on, LED off
POWER button was not
pushed or pushed too
short
Press the POWER button
and hold over than
4 seconds
PCB failure
Replace PCB, call for
service
UPS always in battery
mode
Power cord loose
Replace power cord
AC fuse burned out
Replace AC fuse
Line voltage to high, to low
or black out
Normal condition
PCB failure
Replace PCB, call for
service
Buzzer continuous beeping Overload
Remove the nonessential
loads
UPS does not provide
expected run time. Low
battery warning is sounded
prematurely
Battery is weak due to
wear or successive mains
outages
Allow UPS to recharge
battery for a minimum of
8 hours. If UPS sounds
low battery warning
prematurely when re-tested
battery should be replaced
