When it comes to harnessing the power of the sun, Goodwe solar inverters are a popular choice among homeowners and businesses alike. These devices play a crucial role in converting the DC power generated by your solar panels into AC power that can be used in your home or fed back into the grid. However, like any piece of technology, they can sometimes encounter issues that need troubleshooting.

Understanding the error codes displayed on your Goodwe solar inverter can help you identify and resolve any problems quickly, ensuring your solar system continues to operate efficiently. Whether you’re a seasoned solar power user or new to the world of renewable energy, this guide will help you navigate the common issues and error codes associated with Goodwe solar inverters.

Quick Summary

Goodwe solar inverters come with a range of error codes that help identify specific problems. Understanding these codes can assist in troubleshooting and resolving issues quickly to maintain optimal solar system performance.

Understanding Goodwe Solar Inverter Error Codes

Goodwe solar inverters are designed to display specific error codes when they encounter a problem. These codes are meant to provide a clear indication of what’s going wrong, making it easier for you or a solar electrician to diagnose and fix the issue.

For instance, an error code of 01 signifies an issue with the grid, such as a grid fault or grid loss. On the other hand, an error code of 02 indicates an isolation fault, which could mean there’s a problem with the insulation on your DC cables. Other common error codes include 03 (residual current detected), 04 (DC bus high), and 08 (inverter overheating).

Troubleshooting Goodwe Solar Inverter Problems

Once you’ve identified the error code on your Goodwe solar inverter, the next step is troubleshooting. While some issues can be resolved with a simple system reset, others may require professional solar inverter repairs.

For instance, if your inverter displays an error code 08 (inverter overheating), it could be due to a buildup of dust or debris. In such cases, cleaning the inverter and ensuring it has adequate ventilation can often resolve the issue. However, if the problem persists, it’s best to call in a professional.

Common Goodwe Solar Inverter Error Codes and Their Meanings

  • Error 01: Grid Fault – This could be due to a power outage or a problem with the grid connection.
  • Error 02: Isolation Fault – This indicates a potential issue with the insulation on your DC cables.
  • Error 03: Residual Current Detected – This could mean there’s a leak in the DC current.
  • Error 04: DC Bus High – This suggests the DC voltage is too high.
  • Error 08: Inverter Overheating – This could be due to inadequate ventilation or a buildup of dust or debris.

When to Call in a Professional

While understanding Goodwe solar inverter error codes can help you troubleshoot minor issues, some problems may require professional intervention. If your inverter continues to display an error code after you’ve attempted to resolve the issue, or if you’re unsure about how to fix the problem, it’s best to call in a professional.

As Sydney solar repair specialists, we have the expertise and experience to diagnose and fix a wide range of solar inverter issues. Whether it’s a grid fault, an isolation fault, or an overheating inverter, we can help get your solar system back up and running efficiently.


Goodwe solar inverters are reliable and efficient devices, but like any technology, they can sometimes encounter issues. Understanding the error codes displayed on your inverter can help you troubleshoot minor problems and keep your solar system running smoothly. However, for more complex issues, it’s always best to call in a professional.

At Solar Repair Sydney, we’re committed to helping you get the most out of your solar system. Whether you need solar panel repairs or help with troubleshooting your Goodwe solar inverter, our team of experts is here to assist. Contact us today to schedule a service appointment.

For more information on solar inverters and other related topics, check out our blog posts on solar inverter problems, troubleshooting solar panels, and types of solar panels.

For further reading on solar inverters, check out this comprehensive guide by the Clean Energy Reviews.


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