GoodWe Inverter Error Code 23
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GoodWe error 23: Vac Failure
GoodWe inverter alarm 23, also called Vac Failure, usually indicates that the AC voltage or neutral connection is outside the safe operating range, or that the PE cable is not properly connected. This can happen due to temporary grid voltage fluctuations, external magnetic interference, or an internal component fault.
When Vac Failure occurs, the inverter may automatically pause operation or attempt a restart. While an occasional alarm may be linked to short-term external conditions, repeated occurrences can affect system performance and should be checked by a professional.
Contact e-Solar for safe inspection and verification
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 check the grid voltage, verify neutral and PE cable connections, and confirm the inverter is operating safely within voltage limits.
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
Our Perth-based solar technicians can determine whether the issue is linked to grid voltage, neutral connection, PE wiring, or an internal component fault, and advise on the safest next steps to restore normal 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 23, 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.