34
7 Troubleshooting
Problem
Possible cause
Solution
LED display
Alarm
The 1# fault
LED is on.
The
10#
battery LED
is blinks
Beep once
every
second
The charger of
the
UPS
is
defective
Please contact the distributor or
Service center
The 8# utility
power LED
blinks in
normal mode
Maybe
reversed
polarity (L,N) of
site
wiring
or
disconnect
with
ground,
or the
voltage
between
neutral wiring to
protective ground
is to high
Please check the polarity of the
neutral wiring and the line wiring,
ensure that The green/yellow wire
connect protective ground properly,
or make sure the voltage between
neutral wiring to protective ground
is less than 36VAC
The battery discharge time
diminishes
The battery has
not been fully
charged
Keep the UPS connected to utility
power persistently for more than 10
hours to charge the battery again
The
UPS
overloaded
Check the load status and remove
the non-critical device
Battery aged
Replace the batteries. Please contact
the
distributor
to
obtain
the
replacement components for battery
The UPS cannot power on
after pressing the power on
key
The power on
key is pressed too
briefly
Press the power on key persistently
for more than 1 second
The UPS is not
connect
to
battery
or
the
battery voltage is
too low
Check the connection of the
battery. Turn on the UPS without
load if the battery voltage is low
Internal fault
Please contact the distributor or
Service center
Table 7-1 UPS troubleshooting of LED panel indicator