Huawei LUNA2000-2.0MWH-1H0 User Manual page 150

LUNA2000-2.0MWH-1H0, 2H0 Smart String ESS
User Manual
Alar Alarm
m ID Name
3835 Rectifier
Communi
cation
Failure
3836 Rectifier
Power
Failure
3837 Rectifier
Output
Overvolta
ge
3838 T/H
Sensor
Communi
cation
Failure
3839 Air
Condition
er
Communi
cation
Failure
3840 CO
Sensor
Communi
cation
Failure
3841 H
2
Sensor
Communi
cation
Failure
3842 ESU
Communi
cation
Failure
Issue 02 (2021-11-15)
Severit Possible Causes
y
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.
Minor Cause ID=1
T/H sensor
communication failed.
Minor Cause ID=1-13
Air Conditioner
communication failed.
Minor Cause ID=1-6
CO Sensor
communication failed.
Minor Cause ID=1
H sensor 1
2
communication failed.
Minor Cause ID=1-6
ESU communication
failed.
Copyright © Huawei Technologies Co., Ltd.
Troubleshooting Suggestions
1. Remove rectifier and then insert it 1
minute later.
2. Replace rectifier or the monitoring
module.
3. If the fault persists, contact your
dealer or Huawei technical support.
1. Check whether the AC input is
normal. If the input is normal,
replace rectifier.
2. If the fault persists, contact your
dealer or Huawei technical support.
1. Remove rectifier and then insert it 1
minute later.
2. If the fault persists, contact your
dealer or Huawei technical support.
1. Check whether the communications
cable of the device is correctly
connected.
2. Check whether the power supply of
the device is normal.
10 Alarm Reference
142