GoodWe Inverter Error Code 25
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GoodWe error 25: Relay-check failure
GoodWe inverter alarm 25 usually indicates a relay self-check has failed. This may occur if the neutral and ground connections on AC terminals are loose, or if there is utility ground loss.
When this happens, the inverter may prevent power output until the fault is cleared. While some occurrences can be intermittent, repeated or persistent alarms should be inspected by a qualified technician.
Contact e-Solar for professional relay inspection
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 AC wiring, measure voltage and resistance between ground and neutral, and confirm proper relay operation.
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 team can determine whether the relay fault is caused by internal components, AC wiring, grounding issues, or temporary grid conditions, and guide you to the safest next step.
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 25, 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.