Unable to output AC power

Thank you for contacting us. To quickly diagnose and resolve the issue with your device, please provide the following information:

1. Specific context in which the issue occurs:

Scenario A: The device cannot power connected appliances while simultaneously charging (via AC or solar input).
Scenario B: The device cannot power connected appliances when operating solely on stored battery energy.

2. Device status information:
What is the State of Charge (SOC) displayed on the device at the time the issue occurs?

3. Is the AC output button’s indicator light illuminated?

4. Does the LCD display show any error symbols or error codes?

5. What voltage value is shown in the top-right corner of the screen? (Is it 0 V, or above 220 V?)

6. Connected appliance details:
Please provide the name, model number, and rated power (in watts, W) of the appliance(s) that are not receiving power.

7. Basic troubleshooting check:
When using the same AC output socket, do other appliances power up and operate normally?

To help us resolve this as swiftly as possible, a photo showing the current fault state (e.g., an error code on screen) or a short video clip would be extremely helpful.

We understand this may take a few moments of your time — but the detail you provide will directly support our ability to identify the root cause and deliver the most effective solution.

We look forward to your reply.