Advice 45 - Trouble Shooting

3. Trouble Shooting
Symptom Possible Cause Remedy
1. Missing battery. 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 power switch again.
1. Overload of the UPS. 1. Remove some noncritical
load.
2. Battery voltage is too low. 2. Charge battery 8 hours or
more.
When power
failure, backup
time is short.
3. Battery defect due to high
temperature operation
environment, or improper
operation to battery.
3. Replace with the same
type of battery.
1. Fuse is blown. 1. Replace the same type of
fuse.
Mains normal
but LED is
flashing.
2. Power cord is loose. 2. Reconnect the power cord
properly.
If any abnormal situations occur that are not listed above, please call service
people immediately.