Owner’s manual
EN
TROUBLE SHOOTING
Symptom
Possible cause
Proposed action
LCD doesn’t work
Battery weak
Charge battery up to 8
hours
Battery defect
Replace battery (with
the same type)
Power switch is not
pressed
Press the power switch
again
Alarm buzzer beeps
continuously when AC
supply is normal
Overload of the UPS
Verify the load matches
the UPS capability
specified in the specs
When power failure,
back up time is
shortened
Overload of the UPS
Remove some
non-critical loads
Battery voltage is too
low
Charge battery 8 hours
or more
Battery defect due
to high temperature
operation environment
or improper operation of
battery
Replace battery (with
the same type)
Mains normal but batte-
ry mode indicator lights
Power cord is loose
Reconnect the power
cord
SPECIFICATIONS
Model
KOM0884
KOM0885
Power
2400 VA
3000 VA
Input
Voltage
220-240 VAC
Voltage range
140-300 VAC
Output
Voltage
regulation
(battery mode)
±10%
Frequency
50/60 Hz
Frequency
regulation
(battery mode)
±1 Hz
Output waveform
Modified sinewave
