Unable to output AC power

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

1. Specific circumstances when the issue occurs:

Scenario A: The device is unable to power connected appliances while simultaneously charging (via AC or solar input).
Scenario B: The device is unable to power connected appliances using battery-stored energy only.

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 indicator light illuminated?

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

5. What voltage value is shown in the top-right corner of the screen? (e.g., 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:
When using the same AC output socket, does the device successfully power other appliances?

To help us expedite resolution, a photo or short video showing the current fault state — for example, an error code on the screen — would be extremely helpful.

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

We look forward to your reply.