GoodWe Inverter Error Code 31
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GoodWe error 31: Internal communication failure
GoodWe inverter alarm 31 usually indicates a failure in the internal communication system. This may occur due to intermittent external interference, such as magnetic fields, or because an internal component of the inverter is faulty.
When this fault occurs, the inverter may experience disruption in system monitoring, reporting, or control functions, which can affect performance or prevent normal operation. Occasional alarms may be linked to temporary conditions, while repeated alarms suggest a hardware or communication module issue that needs professional attention.
Contact e-Solar for safe communication inspection
If GoodWe alarm 31 appears, avoid repeatedly restarting the inverter without understanding the cause. Our Perth-based solar team can inspect the internal communication circuits, verify component integrity, and determine whether repairs or part replacements are necessary.
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
Power off the inverter before inspection (turn off the AC output and DC input switches) and follow the safety label instructions. After powering on, e-Solar can verify internal connections, inspect communication circuits, and confirm proper operation.
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 31, 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.