3. Trouble Shooting
Symptom
Possible Cause
Remedy
1. Battery Weak
1. Re-charge battery up to 8
hours.
2. Battery defect.
2. Replace with the same
type of battery.
3. Power switch is not
pressed.
3. Press power switch again.
No LED display
on the front
panel.
4. Battery connector loosed
4. Check the internal battery
connection
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, 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.
