The can be reset through a specific physical power-cycling sequence if you have lost access to the local commissioning screen. This process is useful if your original installer is unavailable or if you need to regain local management of your solar system. Initial Default Password
Return to your pre-opened and log into the local screen.
The application will detect the factory override state and prompt you to create a new password immediately.
If the physical jumper method scares you, owners of older SUN2000 models (with the 4G/3G dongle) use the .
: Flip your external AC circuit breaker to the OFF position. Immediately rotate the DC switch located at the bottom of the Huawei SUN2000 Go to product viewer dialog for this item. huawei+sun2000+reset+installer+password+work
Watch the indicator panel. Wait approximately until the primary LED status light begins blinking green slowly . Step 3: Execute the Second Power-Down
If you are already connected to the inverter's WLAN but forgot the local password, follow these steps in the FusionSolar App :
Before flipping any physical switches, prepare your mobile phone so you do not waste precious seconds during the countdown.
SUN2000-3-4-5-6-8-10KTL-M1 FAQ | HUAWEI Smart PV Global - Huawei The can be reset through a specific physical
: Turn both the AC breaker and DC switch back to the ON position. The system will acknowledge the reset request: all LED indicators on the panel will blink together and then turn off after about 30 seconds, signaling a successful hardware override. Phase 3: Connecting via the FusionSolar Mobile App
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.
: Turn the switches back on, wait 90 seconds for slow green blinking, then turn them off again until LEDs are off.
: Turn off the AC switch, set the DC SWITCH at the bottom of the inverter to OFF, and turn off any connected battery switches. The application will detect the factory override state
Huawei can generate a one-time “super installer” password that expires in 24 hours, but this requires an active support contract.
: Ensure the inverter is operating normally for at least 3 minutes.
This process must be completed within 4 minutes once started: