Before starting any reset procedure, it is helpful to know the factory default credentials. These are the standard values that may be required during the process:
You are looking for pins labeled PIN 3 (Set) and PIN 8 (GND) on the 8-pin terminal, or simply Pin 4 and Pin 5 on a 5-pin terminal (check your specific manual).
(timing is critical!):
Scan the QR code or label on the side of the inverter to log in. Set a New Password huawei+sun2000+reset+installer+password+work
Always register the inverter under your FusionSolar installer account. That way, if you forget the local password, you can remotely reset it via the cloud — no truck roll needed.
The Huawei SUN2000 is a grid-tied inverter designed for residential and commercial solar power systems. It features advanced maximum power point tracking (MPPT) technology, high efficiency, and a compact design. The inverter's user-friendly interface allows installers and maintenance personnel to monitor system performance, configure settings, and troubleshoot issues.
reset installer password work seamlessly without clearing your historical energy generation data. Prerequisites Before Initiating a Reset Before starting any reset procedure, it is helpful
Verify that the primary system indicator starts . Step 3: Execute the Second Power-Off Turn the external AC isolation switch OFF again. Set the physical DC Switch knob back to OFF .
you have (e.g., M1, M2), I can help you confirm if there are any special considerations for your model. AI responses may include mistakes. Learn more (English) PV Guru-Reset inverter password
However, for the average homeowner who lost the manual, or the new homeowner who bought a house with a locked Huawei inverter, Set a New Password Always register the inverter
The inverter must have been powered on and operating normally for at least 3 minutes before you begin the first step.
: Once the indicators show a "slow blinking" state (typically after the restart), you have a limited time to connect via the app and reset the password. Initial/Default Passwords
What of SUN2000 inverter you have (e.g., L1, M1, or M2).
🔧 Forgotten Huawei SUN2000 Installer Password? Here’s a Safe Reset Workaround
After five consecutive failed password attempts, the account will be locked for 10 minutes. If this happens, wait out the lockout period and then try the hardware reset method described above.