InverterCodes.com is an independent diagnostic reference for solar inverter error codes.
When your inverter flashes a fault code, you shouldn’t have to dig through a 300-page manufacturer manual or trust a random forum thread. You should get a clear answer in 30 seconds: what the code means, how serious it is, what you can safely check, and when to call a professional.
What we do
We decode error codes for SolarEdge, Fronius, Growatt, Solis, Deye, Huawei, SMA, and more — explained in plain language. We walk you through safe, homeowner-level first steps, like a proper reboot sequence. And we tell you clearly when a fault needs a qualified electrician. We never blur that line.
What we are not
We are not electricians, and nothing here replaces professional electrical advice. We are not a manufacturer — we’re independent and brand-neutral. We never publish DIY wiring instructions. Ever.
How we verify
Every code’s meaning is checked against the manufacturer’s official documentation before we publish. If we can’t verify it, we don’t publish it.