König Electronic CMP-UPS500VA Manual De Uso página 4

Troubleshooting
Problem
UPS not on, LED off
UPS always at battery
mode
Buzzer continuous beeping Overload
UPS does not provide
expected run time. Low
battery warning is sounded
prematurely
Possible Cause
POWER button was not
pushed or pushed too
short
PCB failure
Power cord loose
AC fuse burned out
Line voltage to high, to low
or black out
PCB failure
Battery is weak due to
wear or successive mains
outages
4
Action to take
Press the POWER button
and hold over 4 seconds
Replace PCB, call for
service
Replace power cord
Replace AC fuse
Normal condition
Replace PCB, call for
service
Remove the nonessential
loads
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