UPS2000-G-(1 kVA-3 kVA)
User Manual
Copyright © Huawei Technologies Co., Ltd.
8 Troubleshooting
When the UPS works abnormally, rectify the fault by referring to the following table.
Table 8-1 Faults and troubleshooting measures
The main power is normal,
but no indicator turns on and
the buzzer generates no
tone.
The mains input power
cable is disconnected.
Check the input power
cable.
The mains input power
cable is incorrectly
connected to the UPS output
end.
Correctly connect the mains
input power cable to the
UPS input terminal.
and blink on the
LCD and the buzzer beeps
once every second.
The external or internal
batteries are incorrectly
connected.
Check that all batteries are
connected correctly.
and blink on the
LCD and the buzzer beeps
twice every second.
Remove surplus load from
the UPS output end.
The UPS is overloaded and
supplying power to devices
in bypass mode.
Remove surplus load from
the UPS output end.
The UPS is overloaded
server times within a short
period of time. The UPS is
locked in bypass mode and
loads are directly connected
to the main power source.
Remove surplus load from
the UPS output end, and
then shut down and restart
the UPS.
The battery backup time is
shorter than the time given
in specifications.
Batteries are not fully
charged.
Charge batteries for at least
5 hours and then check the
battery capacity. If the
battery capacity is still
insufficient, contact the
dealer or Huawei technical
support.
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