A problem
Possible cause
What to do
The UPS does not start, the
LCD does not work
ON button not pressed
down Battery not
connected Backup
(UPS) has burnt fuses
Press the ON button for 4
seconds
Connect the battery Replace
the fuses
The backup battery only
works on the battery
The main power cord is
broken
Fuses are burned
The main power source is
below 160V or above 260V
The UPS is damaged
Replace the cable
Replace fuses Check the
power contact
Repair or replace the backup
source
A fast beep
Overload The battery is
discharged
Disconnect the device
Replace or charge the battery
The backup battery (UPS) only
works for a short time on the
battery
Batteries are exhausted
due to intense work or not
charging correctly during
use
Batteries are old or
damaged
Let the backup battery
(UPS) charge the battery
Replace the battery
