What to do if Goodwe GW15K-ET shows Internal Comm Loss?
If your Goodwe Inverter is experiencing an Internal Comm Loss, which can be caused by a frame format error, parity checking error, CAN bus offline, hardware CRC error, incorrect send/receive control bit, or transmission to an unauthorized unit, try disconnecting the AC output switch and DC input switch, then reconnect them after 5 minutes.
Why I am unable to log in to the parallel system interface in APP for Goodwe GW15K-ET?
If you are unable to log in to the parallel system interface in the APP with your Goodwe Inverter, it could be due to a parallel networking failure, often caused by an incorrect or unreliable communication cable connection. Connect the smart meter and Ezlink module to the same master inverter to ensure the success rate of networking. Check whether the inverter communication indicator is normal. If it is not, please check the individual inverter according to its own troubleshooting method. If the above methods cannot solve the problem, please try to restart the inverter and get networking again.
How to resolve PV Input Overvoltage on Goodwe Inverter?
If your Goodwe Inverter is showing PV Input Overvoltage, it means the PV array configuration is incorrect, and too many PV panels are connected in series in the PV string. Check the serial connection of the PV array. Ensure that the open circuit voltage of the PV string is not higher than the maximum operating voltage of the inverter.
What to do if Goodwe GW15K-ET Inverter displays BUS Overvoltage?
If your Goodwe Inverter displays a 'BUS Overvoltage' error, disconnect the AC output switch and DC input switch, then reconnect them after 5 minutes. This error can be caused by the PV voltage being too high or the sampling of the inverter BUS voltage being abnormal.
What to do if Goodwe GW15K-ET Inverter shows Utility Loss?
If your Goodwe Inverter displays a 'Utility Loss' error, it could be due to a failure in the utility grid power supply or a disconnection in the AC cable. The alarm should clear automatically once the grid power is restored. Ensure the AC cable is properly connected and the AC breaker is turned on.
How do I troubleshoot an Abnormal Ground error on my Goodwe Inverter?
An 'Abnormal Ground' error on your Goodwe Inverter can be caused by: 1. The PE cable of the inverter not being well connected. 2. The L cable and N cable being connected reversely when the output of the PV string is grounded. Check whether the PE cable of the inverter is properly connected. Also, check whether the L cable and N cable are connected reversely if the output of the PV string is grounded.
How to fix GFCI HCT Check abnormal on Goodwe GW15K-ET Inverter?
To address a 'GFCI HCT Check abnormal' error on your Goodwe Inverter, disconnect the AC output switch and DC input switch, then reconnect them after 5 minutes. This error indicates that the sampling of the GFCI HCT is abnormal.
What to do if Goodwe GW15K-ET says flash storage is abnormal?
If your Goodwe Inverter reports that flash storage is abnormal, check the DC terminal to ensure all cables are connected properly.
What causes Grid Overfrequency on a Goodwe GW15K-ET?
If your Goodwe Inverter displays a Grid Overfrequency error, it's likely due to a utility grid exception where the actual grid frequency exceeds the local grid standard's requirements. If this occurs occasionally, it may be a temporary issue, and the inverter should recover automatically once the grid frequency returns to normal. However, if the problem happens frequently, verify that the grid frequency is within the permissible range. If it exceeds the limit, contact your local power company.
Why does my Goodwe GW15K-ET show Grid Overvoltage?
If your Goodwe Inverter is showing a Grid Overvoltage error, it could be because the grid voltage exceeds the acceptable range, or the duration of high voltage surpasses HVRT requirements. If this happens occasionally, it may be a temporary issue with the utility grid, and the inverter should automatically recover once the grid voltage returns to normal. If the problem occurs frequently, verify that the grid voltage is within the permissible range. If it's not, contact your local power company. Also, ensure the AC breaker and output cables are securely and correctly connected.
Essential safety rules for handling and operating the inverter.
Safety measures for connecting and managing photovoltaic strings.
Critical safety instructions specific to the inverter's operation.
Environmental and location criteria for inverter installation.
Step-by-step instructions for physical mounting.
Diagrams illustrating system electrical connections.
Crucial safety rules for making electrical connections.
How to connect photovoltaic strings to the inverter.
Detailed steps for connecting the battery system.
Procedures for connecting the inverter to the AC power source.
Essential checks before energizing the equipment.
Steps to safely turn on the inverter system.
Safe procedure for shutting down the inverter for maintenance.
Solutions for frequently encountered inverter faults.
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