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For error code 405, a software update can often solve this problem. If error code 405 appears, please contact our Growatt support at growatt@aprilice.se.

Error code 409 indicates that the voltage in one or more strings is too high. When there is an alert for 409, the installer needs to check the voltage in the strings and ensure compliance with the datasheet and manual requirements. If the voltage is within the approved range, a software update can often solve the problem in most cases. Please contact our Growatt support at growatt@aprilice.se for further help.

Error code 400 means that the fan of the inverter is not spinning. Please check if the fan is spinning or not, and contact our Growatt support at growatt@aprilice.se for a solution.

Error code 411 means that something related to the control board in the inverter is faulty. In most cases, a software update can resolve the issue, and Growatt support needs to be contacted for the software update via growatt@aprilice.se.

1. Turn off the DC switch on the inverter. 2. Restart the AC connection (with an external power switch if installed, or disconnect and reconnect the AC). 3. Start the battery. 4. The inverter should now be connected to the grid, and the battery should charge from the grid even if no DC power is available.

Please email the following information to growatt@aprilice.se - Company name - Company address (Street address) Then we will get back to you with a created account.

No it is not, the ESS is only operating on AC current.