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 context in which the issue occurs:

Scenario A: The device fails to power connected appliances while simultaneously charging (via AC or solar input).
Scenario B: The device fails to power connected appliances when operating solely on battery-stored 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 codes?

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

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 step:
When using the same AC output port, does the device successfully power other appliances?

To help us expedite resolution, a photo or short video showing the fault condition — for example, an error code displayed on screen — 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.