Huawei - How do I check my warranty on inverter and battery?

For information about the warranty certificate please click on the following link: https://app.huawei.com/escpportal/pub/wechat.html?Language=en&appName=escp&buType=2

You only need to input the serial number of the inverter in the dedicated field, write the correct captcha code, and click submit. 

After that, you will see warranty information about the inverter and also be able to generate the warranty doc. You can check the above image as an example.