: Turn on the DC switch and wait until the inverter LEDs blink. Keep it on this time. Wait for Reset
) fail, installers must use a specific power-cycling sequence to force the system into a 10-minute "recovery window." The "Power Cycle" Protocol
from defaults and lost.
the Direct Current (DC) switch at the bottom of the Go to product viewer dialog for this item.
Turn the and the DC switch OFF again. Wait for all LEDs to turn off. Turn the AC switch ON and the DC switch ON a second time. huawei+sun2000+reset+installer+password+work
Once you reset the installer password, the inverter is "Naked." It has lost its grid parameters. If you reconnect it to the grid without setting the country code, it will not export power (or worse, trip breakers).
: On your smartphone, completely turn off your mobile data and any active automated VPN applications. The FusionSolar app relies on a local point-to-point Wi-Fi connection; cellular interference frequently interrupts local device commissioning.
Method 1: The "Power Cycle" Method (Applicable to Most SUN2000 Models)
Ensure you are comfortable with AC/DC switches. : Turn on the DC switch and wait
To execute the physical power cycle required to override the password, you must satisfy several operational conditions: : The Go to product viewer dialog for this item.
Before attempting a reset, try the standard default passwords. Note that newer firmware updates often force a password change upon first login, so these may not work on used units:
to complete the password reset.
: The most common reason the reset "doesn't work" is timing. The cycles must be performed quickly enough to stay within the 4-minute window, but you must wait for the LEDs to actually start blinking before turning the switch off again. FusionSolar the Direct Current (DC) switch at the bottom
Wait for all functional LED indicator lights on the inverter’s front panel to . Step 2: The First Power-Up Cycle Turn the AC breaker ON . Turn the DC Switch ON .
This 6-step process requires physical access to your inverter, a watch or timer, and .
This process resets the inverter’s local password, WLAN name, and WLAN password to factory defaults. It does not change your FusionSolar cloud account password.
While the methods above work for the majority of SUN2000, specific older or specialized models might have slight variations in the timing, so consulting the exact user manual is always recommended. Conclusion Regaining access to your Huawei SUN2000 inverter