6. Troubleshooting
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Problem Possible cause Solution
The #1 Fault LED and the
#6 LED are turned on, the
buzzer beeps continuously
The UPS shutdown due to
internal overheat
Make sure the UPS is not overloaded;
the air vents are not blocked and the
ambient temperature is not too high.
Wait for 10 minutes for the UPS to cool
down before turning on again. If failed,
please contact the distributor or
service center.
The #1 Fault LED and the
#2 and #5 LED are turned
on, and the buzzer beeps
continuously
The UPS output is short
circuited.
Turn off the UPS. Remove all the
loads. Ensure that the load is not failed
or the UPS has no internal faults
before turning it on again. If failed,
please contact the distributor or
service center.
The #1 Fault LED and the
#4 LED are turned on, the
UPS beeps continuously
The UPS shuts down due
to its internal fault.
Please contact the distributor or
service center.
The #1 Fault LED and the
#5 LED are turned on, the
UPS beeps continuously
The UPS shuts down due
to its internal fault.
Please contact the distributor or
service center.
The #1 Fault LED and the
#3 LED are turned on, the
UPS beeps continuously
Overcharging protection The charger of the UPS is failed.
Please contact the distributor or
service center.
The utility power LED
flashes
The voltage or frequency of
the utility power is out of
the input range of the UPS.
The UPS is running in battery mode.
To save your data and close the
application program. Make sure the
utility power is within the input voltage
or frequency range permitted by the
UPS.
The #1 Fault LED and the
#2 LED are turned on, the
UPS beeps continuously
The UPS is overloaded or
the load equipment is faulty
Check the loads and remove all
no-critical equipment. Recalculate the
load power and reduce the number of
loads connected to the UPS. Check
that the loads are not failed.
The #1 Fault LED and the
battery LED are turned on,
the buzzer beeps every
second
The charger of the UPS is
defective.
Please contact the distributor or
service center.
Battery LED flashes Battery low or battery not
connected
Check the battery. If the battery is
damaged, replace the battery
immediately and ensure that the
battery breaker is in “ON” position.