Issue introduction

The inverter doesn't work, the LED screen keeps showing waiting... status.

Confirmation of basic information

[Photo] SN number of the inverter

Confirm the DC Switch is turn on.

Guidance for installer

Step1: Measuring the voltage on the PV side with a multimeter, ensure the red probe is connected to the positive terminal and the black probe to the negative terminal. The correct measurement should be a positive number within the MPPT range. If a negative number appears, it indicates that the PV wires are reversed. If the voltage is too low, wait for sufficient solar energy to start the device.

Measure the PV terminal voltage

Step2: Measure the phase voltage of each of the three phases of L1 and N, L2 and N, and L3 and the normal value should be above 200V.

Measured phase voltage

Step3: Measure the line voltage between L1 and L2, L2 and L3, and each of L1 and L3. The normal value should be around 400V.

Measured line voltage

Step4: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 R&D.

1.[Photo] SN number of the inverter

2.[Photo]The PV terminal voltage.

3.[Photo]Phase voltage measurement result, L1&N, L2&N, L3&N.

4.[Photo]Line voltage measurement result, L1&L2, L2&L3, L1&L3.