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6 Troubleshooting
In the event of an UPS fault, shoot the trouble according to Table 6-1. If the fault still
persists, please contact the customer service center.
Table 6-1 UPS troubleshooting
Problem Possible cause solution
The #1 Fault LED and #6
LED are on, the buzzer beeps
continuously.
Internal overheat Ensure that the UPS is not overloaded and the ventilation
opening is not blocked and ambient temperature is not too
high. Wait for 10 minutes for the UPS to cool down before
turning it on again. If it does not work. please contact the
distributor or service center
The #1 Fault LED and #5
LED are on, the buzzer beeps
continuously
Internal fault Please contact the distributor or Service center
The #1 Fault LED and #4
LED are on, the buzzer beeps
continuously
Internal fault Please contact the distributor or Service center
The #1 Fault LED and #3
LED are on, the buzzer beeps
continuously
Over-charging
Protection
The charger of the UPS is defective. Please contact the
distributor or Service center
The voltage or frequency of
the utility power is out of
the input range of the UPS
（
when being activated, the
UPS beeps twice every
second for 8 times）
The UPS running in the battery mode. To save you data
and then close the application in use. Ensure that utility
power is within in the input voltage frequency range
permitted by the UPS
The #8 utility power LED
blinks
Maybe reversed polarity
(L,N) of site wiring. The
alarm beeps once every 2
minutes
Please check the polarity of the neutral wiring and the line
wiring
The #1 Fault LED and #2
LED are on, the buzzer beeps
continuously
The UPS overloaded or the
load device is faulty in
battery mode
Check the load and remove the non-Critical device.
Recalculate the load power and reduce the member of
loads connected to the UPS. Check whether the load
device is fault
The #1 Fault LED and #2
LED and #6 are on, the buzzer
beeps once every second
Fan of UPS is not
connected or fault
Please contact the distributor or Service center
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