Eng
SMART L 1000/2000/3000
9. TROUBLESHOOTING
17
Situation
Check items
Solution
The UPS is not included. Or it is not
switched off.
1. Main Switch It is not pressed.
2. Short circuit on an output.
3. Overload.
4. A problem with the computer inter'
face.
1. Press once again.
2. Disconnect a part of loading.
3. Disconnect the interface and Switch
on once again.
The UPS issues short sound signals and
works in an back'up mode even at a
normal input voltage AC power.
1. Input Circuit Breaker is turn off.
2. Bad contact in AC power.
1. Reduce loading and turn on Circuit
Breaker.
2. Check up quality of connection of the
UPS to AC power.
Start UPS but red LED flash.
Low battery power because of long term
AC power failure.
When AC power in normal condition
Execute battery charge for 8 hours.
UPS does not provide the expected
back'up time.
The battery may be low power because.
Long'term storage.Overload. End of
battery life.
Charge the battery for 8 hours.Turn off
connected applications. Replace the
battery.
Red LED illuminates and alarm continu'
ants beeping.
UPS fault.
Unplug the UPS from wall outlet.
