Huawei+sun2000+reset+installer+password+work -

Safety First: Turn off the DC switch (if your model has one) and the AC backup switch. Wait 5 minutes for capacitors to discharge.

Step 1: Locate the COM Port Remove the four screws on the bottom cover of the SUN2000 (where the cables enter). Look for the COM port – usually a 3-pin or 5-pin green terminal block labeled COM, RS485, or Meter.

Step 2: Identify the Reset Pins 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).

Step 3: Jumper the Contacts With the inverter still powered OFF (AC side), insert your jumper wire into the SET pin and the GND pin. Now, turn the AC breaker back ON. The inverter will power up but remain in "Standby" or "Initializing." huawei+sun2000+reset+installer+password+work

Step 4: The Magic Window (15 Seconds) Keep the jumper in place for exactly 15 to 20 seconds. Do not remove it early.

Step 5: Remove Jumper & Reboot Remove the jumper wire. Turn the AC breaker OFF. Wait 30 seconds. Turn AC breaker back ON.

The Result: The SUN2000 has now hard reset to factory defaults. Safety First: Turn off the DC switch (if

If you need a legitimate, well-cited informational document (e.g., a technical note or white paper) on related topics, here are three valid directions:

Crucial Warning: Attempting random passwords too many times will lock the login interface for 15–60 minutes.

If the inverter is bound to a FusionSolar enterprise account (not a personal one), resetting the password locally might not work because the SUN2000 expects an App "Handshake." Step 3: Jumper the Contacts With the inverter

If you followed the steps but the password 00000 still fails, check these three issues:

Before we fix the issue, we must understand the architecture. The Huawei SUN2000 has two distinct user roles:

Many guides skip this, but you must attempt the "Forgot Password" flow inside the SmartLogger or Inverter WebUI before trying hard resets.