Troubleshooting - Huawei UPS2000-G-6KRTS User Manual

UPS2000-G-(6 kVA-20 kVA)
User Manual
When a UPS is faulty, alarm information is displayed on the LCD. Critical alarms must be
processed before the UPS is powered on again. Otherwise, the fault may be extended, or the
UPS may be damaged.
Table 8-1
Table 8-1 Solutions to common faults
No.
1
2
3
4
Issue 10 (2017-01-19)
lists the solutions to common faults.
Symptom
The mains switch is ON.
The LCD does not display
anything. The system
does not perform
self-tests.
The mains is normal, but
the AC input indicator is
off. The UPS runs in
battery mode.
The UPS does not report
faults, but has no output
voltage.
The UPS does not start
after you press .
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8

Troubleshooting

Possible Cause Measure
The input power Check the input power cable
supply is not connection.
connected.
The input voltage Use a multimeter to check that the
exceeds the limit. UPS input voltage meets
specifications.
The mains switch
Turn on the mains switch.
is OFF.
The input power Check the input power cable
cable is not connection.
securely
connected.
The output Check the output power cable
power cable is connection.
not securely
connected.
is not Press
pressed long seconds until you hear a beep
enough. sound.
8 Troubleshooting
for more than 5
91