Huawei LUNA2000-2.0MWH Series User Manual page 195

LUNA2000-2.0MWH Series Smart String ESS
User Manual
Alarm Alarm
ID Name
Malfuncti
on
3833 Rectifier
Fault
3834 Rectifier
Protection
3835 Rectifier
Communic
ation
Failure
3836 Rectifier
Power
Failure
3837 Rectifier
Output
Overvolta
ge
Issue 08 (2022-11-15)
Severity Possible Cause
Cause ID = 2
The air conditioners in
the control unit cabin
are faulty.
Major Cause ID = 1–6
The rectifier hardware is
faulty.
Major Cause ID = 1–6
1. The AC voltage is
abnormal.
2. The ambient
temperature is too
high.
Major Cause ID = 1–6
1. The rectifier has been
removed.
2. The rectifier is faulty
and not working.
Major Cause ID = 1–6
The AC loop is
disconnected.
Major Cause ID = 1–6
Lockout has occurred
due to output
overvoltage.
Copyright © Huawei Technologies Co., Ltd.
10 Alarm Reference
Suggestion
1. Replace the rectifier [NUMBER].
2. If the fault persists, contact your
dealer or technical support.
1. Check whether the AC input
voltage is greater than 300 V. If yes,
check the power supply.
2. Check whether the air vent of
rectifier [NUMBER] is blocked. If
yes, clean it. Check whether there is
a heat source near the air vent. If
yes, remove the heat source. Check
whether the heat dissipation fan is
damaged. If yes, replace the
rectifier.
3. If the fault persists, contact your
technical support.
1. Turn off the AC input switch of
the PSU.
2. Remove rectifier [NUMBER] and
insert it again.
3. If the fault persists, replace
rectifier [NUMBER] or the
monitoring module.
4. If the fault persists, contact your
technical support.
1. Check whether the AC input
voltage is less than 80 V. If yes,
check the power supply. If not,
replace rectifier [NUMBER].
2. If the fault persists, contact your
technical support.
1. Remove the rectifier and then
insert it 1 minute later.
2. If the fault persists, contact your
dealer or technical support.
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