10
Owner’s manual
EN
TROUBLE SHOOTING
PROBLEM POSSIBLE CAUSE ACTION TO TAKE
UPS cannot turn on Battery voltage less than
10V
Recharge the UPS at least
6 hours
UPS always at battery
mode
Power cord loose Plug in the power cord
AC fuse burnt out Reset the AC fuse
Line voltage too high, too
low or black out
Normal condition
Backup time too short Battery not fully charged Recharge the UPS at least
6 hours
Buzzer continuous beep-
ing
Overload Remove some loads
Battery exhaustion Charge the battery
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