Troubleshooting

3000

Low battery DC input bus voltage

Major

1. The DC bus voltage of the battery is low.

2. The battery DC switch is OFF.

3. The battery cables are not correctly connected.

1. Turn off the inverter AC output switch, inverter DC input switch, and battery DC switch, and wait for 5 minutes.

2. Check the cable connections to the [Battery-1/2] power control module by referring to the quick installation guide.

3. After checking that the battery power cables are correctly connected, turn on the battery DC switch, AC output switch, and inverter DC input switch in sequence.

4. If the alarm persists, contact your dealer or Huawei technical support.

3001

Abnormal battery power control module

Major

An unrecoverable fault has occurred on an internal circuit of the battery power control module.

1. Turn off the inverter AC output switch, inverter DC input switch, and battery DC switch, and wait for 5 minutes.

2. Turn on the battery DC switch, inverter AC output switch, and DC input switch.

3. If the alarm persists on the [Battery-1/2] power control module (the battery fault indicator is steady on), contact your dealer or Huawei technical support.

3002

Battery power control module overtemperature

Minor

1. The installation position of the battery power control module is not well ventilated.

2. The ambient temperature is excessively high.

3. The battery power control module is abnormal.

1. Check the ventilation and whether the ambient temperature of the [Battery-1/2] power control module exceeds the upper threshold.

2. If the ventilation is poor or the ambient temperature is excessively high, improve the ventilation and heat dissipation.

3. If the ventilation and ambient temperature are normal, contact your dealer or Huawei technical support.

3003

Battery power control module fuse blown

Major

The fuse of the battery power control module is blown.

1. Turn off the inverter AC output switch, inverter DC input switch, and battery DC switch, and wait for 5 minutes.

2. Replace the fuse of the [Battery-1/2] power control module.

3. Turn on the battery DC switch, inverter AC output switch, and inverter DC input switch in sequence. If the alarm persists, contact your dealer or Huawei technical support.

3004

Battery power control module reversely connected

Major

The positive and negative terminals are reversely connected when the battery power control module connects to the inverter.

1. Turn off the inverter AC output switch, inverter DC input switch, and battery DC switch, and wait for 5 minutes.

2. Check the cable connections to the [Battery-1/2] power control module by referring to the quick installation guide.

3. After checking that the battery power cables are correctly connected, turn on the battery DC switch, AC output switch, and inverter DC input switch in sequence.

4. If the alarm persists, contact your dealer or Huawei technical support.

3005

Battery power control module DC switch OFF

Warning

1. The DC switch of the battery power control module is OFF.

2. The DC bus cable to the battery power control module is disconnected.

1. Turn off the inverter AC output switch, inverter DC input switch, and battery DC switch, and wait for 5 minutes.

2. Check the cable connections to the [Battery-1/2] power control module by referring to the quick guide.

3. After checking that the battery power cables are correctly connected, turn on the battery DC switch, AC output switch, and inverter DC input switch in sequence.

4. If the alarm persists, contact your dealer or Huawei technical support.

3006

Abnormal battery expansion module

Major

An unrecoverable fault has occurred on an internal circuit of a battery expansion module.

1. Check that the power cables and communications cables are correctly connected to the [Battery-1/2 battery expansion module-1/2/3] battery expansion modules.

2. Send a shutdown command on the app, turn off the inverter AC output switch, inverter DC input switch, and battery DC switch, and wait for 5 minutes.

3. Turn on the battery DC switch, inverter AC output switch, and DC input switch.

4. If the alarm persists, contact your dealer or Huawei technical support.

3007

Battery expansion module cable disconnected

Major

1. A battery expansion module cable is disconnected.

2. A battery expansion module is abnormal.

1. Turn off the inverter AC output switch, inverter DC input switch, and battery DC switch, and wait for 5 minutes.

2. Check whether the power cable is securely connected to the [Battery-1/2 battery expansion module-1/2/3] battery expansion modules (the terminal is loose or disconnected, or the cable is disconnected). For details, see the quick installation guide.

3. After checking that the cables are correctly connected, turn on the battery DC switch, AC output switch, and inverter DC input switch in sequence.

4. If the alarm persists, contact your dealer or Huawei technical support.

3008

Battery expansion module overtemperature

Minor

1. The battery installation position is not well ventilated.

2. The ambient temperature is excessively high.

3. The battery power control module is abnormal.

1. Check the ventilation and whether the ambient temperature of the [Battery-1/2 battery expansion module-1/2/3] battery expansion modules exceeds the upper threshold.

2. If the ventilation is poor or the ambient temperature is excessively high, improve the ventilation and heat dissipation.

3. If the ventilation and ambient temperature are normal, contact your dealer or Huawei technical support.

3009

Battery expansion module low temperature

Minor

1. The ambient temperature is excessively low.

2. A battery expansion module is abnormal.

1. Check whether the ambient temperature in the installation positions of the [Battery-1/2 battery expansion module-1/2/3] battery expansion modules is lower than the lower threshold.

2. If the ambient temperature is excessively low, improve the installation environment.

3. If the alarm persists after the ambient temperature becomes normal, contact your dealer or Huawei technical support.

3010

Battery expansion module short circuit

Major

1. The battery expansion module is short-circuited.

2. A battery expansion module is abnormal.

1. Turn off the inverter AC output switch, inverter DC input switch, and battery DC switch, and wait for 5 minutes.

2. Check the power cable connection to the [Battery-1/2 battery expansion module-1/2/3] battery expansion modules by referring to the quick installation guide. If the cable is damaged or short-circuited, replace it.

3. After checking that the cables are correctly connected, turn on the battery DC switch, AC output switch, and inverter DC input switch in sequence.

4. If the alarm persists, contact your dealer or Huawei technical support.

3011

Battery expansion module undervoltage

Warning

The voltage of a battery expansion module is low.

If the sunlight is sufficient or AC reverse charging is allowed, the [Battery-1/2 battery expansion module-1/2/3] battery expansion modules can be charged when the inverter is running.

3012

Abnormal battery power control module parallel communication

Major

The battery power control modules of the parallel system fail to communicate with each other.

1. Send a shutdown command on the app, turn off the inverter AC output switch, inverter DC input switch, and battery DC switch, and wait for 5 minutes.

2. Check that the communications cable is correctly connected between the [Battery-1/2] battery power control modules of the parallel system.

3. After checking that the cables are correctly connected, turn on the battery DC switch, AC output switch, and inverter DC input switch in sequence.

4. If the alarm persists, contact your dealer or Huawei technical support.

3013

Abnormal battery expansion module communication

Major

The battery power control module fails to communicate with the battery expansion modules.

1. Turn off the battery DC switch.

2. Check that the power cables and communications cables are correctly connected to the [Battery-1/2 battery expansion module-1/2/3] battery expansion modules.

3. After checking that cables are correctly connected, turn on the battery DC switch.

4. If the alarm persists, contact your dealer or Huawei technical support.