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.
What causes Abnormal GFCI 30mA error on Goodwe GW15K-ET Inverter?
If your Goodwe Inverter shows an Abnormal GFCI 30mA error, it indicates that the input insulation impedance becomes low when the inverter is working. If this occurs occasionally, it may be due to a cable exception, and the inverter will recover automatically once the problem is resolved. If the problem occurs frequently or persists, check whether the impedance between the PV string and PE is too low.
What does LVRT Undervoltage mean on Goodwe GW15K-ET Inverter?
If your Goodwe Inverter displays LVRT Undervoltage, it indicates a utility grid exception where the duration of the utility grid exception exceeds the set time of LVRT. If this problem occurs occasionally, the utility grid may be temporarily abnormal, and the inverter will recover automatically once the grid returns to normal.
How to fix AC HCT Check abnormal error on Goodwe GW15K-ET Inverter?
If your Goodwe Inverter displays an AC HCT Check abnormal error, indicating that the sampling of the AC HCT is abnormal, try disconnecting the AC output switch and DC input switch, then reconnect them after 5 minutes.
Why is my Goodwe Inverter device offline on the APP?
If the APP displays that your Goodwe Inverter is offline, it could be due to a communication failure or equipment failure. Check whether the quantity of parallel machines in the system is the same with the actual connected ones. If it is, get the SN of the corresponding offline inverter from the equipment list, and troubleshoot the corresponding inverter according to its user manual. Check whether the communication connection of the equipment is normal, with no loose, aging or wrong connection, etc.
Why does my Goodwe Inverter show Relay Check abnormal?
If your Goodwe Inverter displays a Relay Check abnormal error, which can be caused by a relay being abnormal or short-circuited, an abnormal control circuit, or an abnormal AC cable connection (like a virtual connection or short circuit), try disconnecting the AC output switch and DC input switch, then reconnect them after 5 minutes.
How to troubleshoot Flash Fault on Goodwe Inverter?
If your Goodwe Inverter displays a Flash Fault, indicating that the internal Flash storage is abnormal, try disconnecting the AC output switch and DC input switch, then reconnect them after 5 minutes.
What does Large DC of AC current L1 mean on Goodwe GW15K-ET?
If your Goodwe Inverter shows Large DC of AC current L1, it means that the DC component of the output current exceeds the safety or default range. If the problem is caused by an external fault like a utility grid exception or frequency exception, the inverter will recover automatically after solving the problem.
What to do if my Goodwe GW15K-ET Inverter has a DC Arc Fault?
If your Goodwe Inverter displays a DC Arc Fault, it could be because the DC terminal is not firmly connected or the DC cable is broken. Refer to the Quick Installation Guide and check whether the cables are connected properly.
How to fix PV Continuous Hardware Overcurrent on Goodwe GW15K-ET?
If your Goodwe Inverter displays PV Continuous Hardware Overcurrent, it could be caused by an improper PV configuration or hardware damage. Try disconnecting the AC output switch and DC input switch, then reconnect them after 5 minutes.
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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