Huawei/Inverter - Reset the Installer password

What is this document about?

This document describes how to reset the WLAN password and SUN2000-(2-6KTL)-L1’s
password with FusionSolar APP following the below steps.

Note:

• With this operation the WLAN name, WLAN connection password, user login
  password, router parameters and the management system parameters will be restored to
  factory settings.
• You should note that the below operations must be performed within 3 minutes.
• Have your Wi-Fi/router password ready.

How to change the password?

1. Turn off the SUN2000 AC isolator.
   1. 
2. Turn off the DC switch (located on the bottom of the inverter).
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3. Turn off the battery (if applicable).
4. After all indicators on the SUN2000 panel are off, turn on the AC isolator. 
5. Turn on the DC switch.
6. Turn on the battery.
7. Ensure that the AC indicator is blinking green at long intervals or steady green (There are 3 LED's on the front of your Huawei inverter, look to the one with the symbol below).
   1. 
8. Turn off the AC isolator.
9. Turn off DC switch.
10. Turn off the battery (if applicable).
11. Wait until all the three indicators on the inverter are off.
12. Turn on the AC isolator.
13. Turn on DC switch.
14. Turn on the battery.
15. Reset the password within 10 minutes, if no operation is performed within 10 minutes, all parameters from inverter will remain unchanged.
16. Wait until the DC indicator blink green at long intervals.
    1. 
17. Connect again with the FusionSolar app, it may requires again to input the Wi-Fi password (Changeme) and then the FusionSolar APP is restored to the initial password “00000a”.
18. Login as an Installer, go to Settings -> Communication Configuration -> Router Connection Settings and set the router parameters (select your router, input the password and press Connect).
19. Go back to Communication Configuration, now go to Management System Configuration and set the management system parameters and then press Connect.