L10US-IB20, L10US-IB40, L10US-IB60 L10US-IB00, L15US-IB40, L15US-IB60 L15US-
IB00, L20US-IB60, L20US-IB00 UPS
no charge voltage
and current
damaged, or battery is
reversely connected.
Battery number and
capacity are not set
correctly.
Connect the battery cables
correctly.
Go to LCD setting of the battery
number and capacity, set the
correct data.
Buzzer beeps every
0.5 seconds and LCD
display “output
overload”
Buzzer long beeps,
LCD display “29” fault
code
The UPS output is in short
circuit
Make sure the load is not in
short circuit, and then restart
the UPS.
The UPS only works
on bypass mode
The UPS is set to ECO
mode
Set the UPS working mode to
Normal mode
Battery switch is not
properly closed:
Battery fuse is not open:
Or Battery low:
Battery quantity is set
wrong.
Power breaker in the rear
panel does not switch ON.
Close the battery switch:
Change the fuse:
Recharge the battery:
Power ON the UPS with AC to
set the battery quantity
&quantity.
Switch on the power breaker.
Buzzer beeps
continuously and
LCD indicates
1,3,5,9,15, etc. fault
codes
Consult with your local agent
for repair