Huawei SUN2000 MAP0 Series - Troubleshooting; Replacing an Inverter

Precautions
WARNING
● After the system is powered o, the inverter is still energized and hot, which
may cause electric shocks or burns. Therefore, wait for 5 minutes after power-
o and then put on insulated gloves to operate the inverter.
● Power o the system before maintaining optimizers and PV strings. Otherwise,
electric shocks may occur when the PV strings are energized.
Procedure
Step 1 Send a shutdown command on the app.
Step 2 Turn o the AC switch between the inverter and the power grid.
Step 3 Set the DC SWITCH to OFF.
Step 4 (Optional) Install the padlock for the DC SWITCH. This step applies only to
models used in Australia.
Step 5 Turn o the DC switch between the inverter and PV strings.
Step 6 (Optional) Turn o the battery switch on the battery.
----End
8.3 Troubleshooting
For details about alarms, see the Inverter Alarm Reference.
8.4 Replacing an Inverter
Step 1 Remove the inverter.
1. Power o the system. For details, see 8.2 System Power-O.
2. Disconnect all cables from the inverter, including signal cables, DC input
power cables, battery cables, AC output power cables, and PE cables.
3. Remove the inverter from the mounting bracket.
4. Remove the mounting bracket.
Step 2 Pack the inverter.
● If the original packaging is available, put the inverter inside it and then seal it
using adhesive tape.
● If the original packaging is unavailable, put the inverter inside a suitable hard
cardboard box and seal it properly.
Step 3 Dispose of the inverter.
If the inverter reaches the end of its service life, dispose of it according to local
regulations for the disposal of electrical equipment.
SUN2000-(5K-12K)-MAP0 Series
User Manual 8 System Maintenance
Issue 01 (2024-05-13) Copyright © Huawei Digital Power Technologies Co., Ltd. 113