Growatt Inverter Error Code 100
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Growatt error 100: Internal reference voltage fault
Growatt inverter error code 100 usually means the inverter has detected an internal reference voltage fault. This type of error is commonly linked to an internal inverter issue involving the control board or voltage regulation components.
When this happens, the inverter may stop producing power or shut down as a safety response to protect the system.
This is generally not a grid-related warning or normal operating condition. In many cases, Growatt error code 100 points to an internal hardware or electronic fault that requires professional assessment if it keeps returning.
A temporary restart may clear the fault, but if the code reappears, the inverter may require further diagnostics, repair or warranty support.
Contact e-Solar for inverter diagnostics
If Growatt error code 100 appears once and clears after a restart, the inverter may have experienced a temporary internal fault. However, if the code keeps returning, it is worth having the system checked.
Our Perth solar experts can inspect the inverter, review fault logs and help determine whether the issue is linked to internal inverter hardware, voltage regulation, firmware behaviour or another electrical 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 technician may need to assess the inverter electronics, internal control systems and warranty status safely.
Growatt error code 100 is commonly associated with an internal reference voltage fault. In many cases, the inverter may temporarily recover after a restart, but if the code returns, the system should be professionally assessed to determine whether there is an internal hardware or control board issue.
If you’re unsure, don’t risk it. Contact e-Solar for safe, local support.
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 100, 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.