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 Solutions to common faults
No.
1
2
3
4
Issue 18 (2021-07-16)
CA UTION
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
Copyright © Huawei Technologies Co., Ltd.
8
Possible Cause
The input
power supply is
not connected.
The input
voltage
exceeds the
limit.
The mains
switch is OFF.
The input
power cable is
not securely
connected.
The output
power cable is
not securely
connected.
is not
. pressed long
enough.

8 Troubleshooting

Troubleshooting
Measure
Check the input power cable
connection.
Use a multimeter to check
that the UPS input voltage
meets specifications.
Turn on the mains switch.
Check the input power cable
connection.
Check the output power cable
connection.
Press for more than 5
seconds until you hear a beep
sound.
110