GoodWe Inverter Error Code 02ETU
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GoodWe error 02ETU: AFCI-fault
GoodWe alarm 02ETU usually indicates a fault with the inverter’s AFCI (Arc-Fault Circuit Interrupter) protection system. This can occur if the DC connectors are loose, improperly connected, the wrong model is used, or an internal component of the inverter is faulty.
This alarm is a safety mechanism designed to detect potential arc faults in the DC circuitry and prevent fire or electrical hazards. It may also appear intermittently due to external factors, such as magnetic interference.
Contact e-Solar for professional inverter advice
If the alarm occurs, power off the DC switch before inspecting the connections. Ensure that the DC connectors are correctly installed and compatible with the inverter model. After powering the system back on, e-Solar can verify the DC wiring, confirm the integrity of the AFCI system, and check for any internal inverter faults.
Contact e-Solar and let us know:
- The exact error code on the screen or app
- When the code appears
- Whether your solar production has dropped
- Your inverter model, if you know it
Do not open the inverter or attempt to service the internal components yourself. If the issue persists, a qualified technician may need to check the DC wiring, connections, and AFCI circuitry to ensure the system is safe.
Get In Touch Today
Not sure what the error code means? Send us a quick message with a photo of your inverter screen. We’ll help identify the issue and guide you towards the safest next step.
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GoodWe Inverter Repairs and Fault Support
We understand that every solar system is different, which is why our repair and fault-finding services cover a wide range of GoodWe inverter models. If your inverter is showing error code 02ETU, our experienced technicians can help determine whether the issue is linked to grid voltage, inverter settings, site wiring or wider network conditions.
With over 22 years supporting Perth solar systems, e-Solar has seen all kinds of inverter faults and performance issues. We’ll assess your system safely, explain what the code means, and recommend the right next step to help get your solar running properly again.
Trust e-Solar for reliable GoodWe inverter support backed by local experience, honest advice and long-term solar care.