Growatt Inverter Error Code 305
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Growatt error 305: Overload error
Growatt error code 305 usually means the inverter has detected an overload condition. This can happen when the output load is higher than the inverter can safely support.
When this happens, your inverter may reduce output, disconnect or stop operating to protect the system.
This type of fault may be linked to excessive load demand, incorrect system configuration, inverter sizing issues, backup load problems, wiring issues or another fault affecting the inverter’s output.
Book a solar inverter check with e-Solar
If the code appears once and clears by itself, your inverter may have responded to a temporary overload condition.
If Growatt error code 305 keeps returning, your solar output has dropped, or your system is not operating normally, it is worth having the system checked. Our Perth-based solar team can inspect the inverter, review the load setup and help determine whether the issue is linked to overload conditions, inverter sizing, backup circuits, wiring or another system fault.
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 electrical testing yourself. If the issue is persistent, a qualified solar technician may need to assess the output load, inverter configuration, backup circuit setup and system wiring before recommending 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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Growatt 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 Growatt inverter models. If your inverter is showing error code 305, 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 Growatt inverter support backed by local experience, honest advice and long-term solar care.