UDD-SD-110/
Release Date: 19.12.2014/Rev No: 1/Rev.
Date
: 30.07.2015
9 Trouble Shooting
Symptom
Possible Cause
Remedy
1. Battery weak.
1. Charge battery up to 8 hours.
2. Battery defect.
2. Replace with the same type of
battery.
No LED display on the
front panel.
3. Power switch is not pressed.
3. Press the power switch again.
Alarm
buzzer
beeps
continuously when AC
supply in normal.
Overload of the UPS.
Verify that the load matches the UPS
capability specified in the specs.
1. Overload of the UPS.
1. Remove some non-critical load.
2. Battery voltage is too low.
2. Charge battery 8 hours or more.
When power failure back-
up time is shorten.
3. Battery defect due to high
temperature
operation
environment,
or
improper
operation to battery.
3. Replace with the same type of
battery.
Mains normal but LED is
flashing.
Power cord is loose.
Reconnect the power cord properly.
If any abnormal situation accor that are not listed above, pleace call service people immediately.
10 Specifications
MODEL
