What should I do if the X1-VAST series inverter encounters a fault?

Check for warning or error messages on the system control panel or App. Refer to the troubleshooting list in the manual. For example, if it shows "IE01 - TZ Protect Fault", wait for a while, disconnect PV, PV - and batteries and reconnect. If the problem persists, contact SolaX Customer Service with the inverter model and SN.