FAQ/String Inverter

Issue introduction

Confirmation of basic information

[Photo]SN numbers of the inverter.

Guidance for installer

Step1: Use a multimeter to measure the voltage of each string of photovoltaic panels,and the he measured voltage should be within the MPPT range.If the measured voltage value is close to the maximum MPPT range threshold, it is recommended to reduce the number of photovoltaic panels in the corresponding string.

 
Step2:Use a multimeter to measure the voltage at the inverter's AC port. In a three-phase system, measure the line voltage.

Step3:Upgrade the firmware version to the latest.

Information check list

If you have completed the above <Guidance for installer>, and the problem is still not solved, please collect the following troubleshooting information and send them to the Solax technical support team.

1.[Photo]SN numbers of the inverter.

2.[Photo]Voltage data on the PV side.

3.[Photo]The line voltage between L1&L2, L2&L3, L1&L3 and the phase voltage between L1&N, L2&N, L3&N at the AC side.