Troubleshooting guide

If the UPS system does not operate correctly, use the table below to troubleshoot the problem.
4. Troubleshooting guide
Even when utility power is normal,
there is no indication on the front
panel and the alarm has gone off.
The icon and the warning
code flash on the LCD display,
and the alarm starts beeping
once every second.
The and icons become
illuminated on the LCD display,
and alarm starts beeping
once every second.
The and icons flash
on the LCD display, and the alarm
starts beeping twice every second.
Fault code 43 becomes illuminated
along with the icon on
the LCD display, and the alarm
starts beeping continuously.
Fault code 14 becomes illuminated
along with the icon on the LCD
display, and the alarm starts
beeping continuously.
Fault code 1, 2, 3, 4, 11, 12, 13, 14，
1A, 21, 24, 35, 36, 41，42 or 43
become illuminated on the LCD
display, and alarm starts beeping
continuously.
The AC input cable is
not properly connected.
The external or internal
battery connection
is incorrect.
The UPS is overloaded.
The UPS is overloaded.
In bypass mode, loading
current is supplied to the
devices directly from
utility power.
After repetitive overloads,
the UPS is locked in
Bypass mode.
Connected devices are fed
directly from utility power.
The UPS has been
overloaded for too long
and becomes faulty.
The UPS will shut down
automatically.
The UPS shuts down
automatically because
the output is short circuited.
A UPS internal fault has
occurred. There are two
possible causes:
1. Power is continued to be
supplied to the load, but is
done directly from the AC
grid via a bypass.
2. Power is no longer
supplied to the load.
Check if all batteries are properly
connected.
Remove excess loads from
the UPS output.
Remove excess loads from
the UPS output.
Remove excess loads from the UPS
output first. Then shut down the UPS
and restart the unit once again.
Remove excess loads from the UPS
output and restart the unit once again.
Check the output wiring and if the
connected devices are short-circuited.
Contact the dealer or service center.
Battery backup time is shorter
than its nominal value.
Batteries are not fully
charged.
Defective batteries.
Charge the batteries for at least
7 hours and then check their capacity.
If the problem persists, consult
your dealer.
Contact your dealer for a replacement.
Set the circuit in its closed
position to disable the
EPO function.
EPO function is enabled.
Check to make sure the power cord
is firmly connected to the AC mains
outlet.
Symptom Possible cause Remedy