Troubleshooting - Huawei UPS2000-G Series Quick Manual

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Troubleshooting

Symptom
The main power is
normal, but no indicator
turns on and the buzzer
generates no tone.
and blink on the
LCD and the buzzer
beeps once every
second.
and blink on the
LCD and the buzzer
beeps twice every
second.
The battery backup time
is shorter than the time
given in specifications.
Possible Cause
The mains input power cable is
disconnected.
The mains input power cable is
incorrectly connected to the UPS
output end.
The external or internal batteries
are incorrectly connected.
The UPS is overloaded.
The UPS is overloaded and
supplying power to devices in
bypass mode.
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.
Batteries are not fully charged.
Batteries are faulty.
Measures
Check the input power cable.
Correctly connect the mains input
power cable to the UPS input
terminal.
Check that all batteries are
connected correctly.
Remove surplus load from the UPS
output end.
Remove surplus load from the UPS
output end.
Remove surplus load from the UPS
output end, and then shut down
and restart the UPS.
Charge batteries for at least 5
hours and then check the battery
capacity. If the battery capacity is
still insufficient, contact the dealer.
Contact the dealer to replace
batteries.
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